49400125 has 8 divisors (see below), whose sum is σ = 61651512. Its totient is φ = 39520000.

The previous prime is 49400123. The next prime is 49400161. The reversal of 49400125 is 52100494.

It can be written as a sum of positive squares in 4 ways, for example, as 15539364 + 33860761 = 3942^2 + 5819^2 .

It is not a de Polignac number, because 49400125 - 2¹ = 49400123 is a prime.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 49400125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49400123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197476 + ... + 197725.

It is an arithmetic number, because the mean of its divisors is an integer number (7706439).

Almost surely, 2^49400125 is an apocalyptic number.

It is an amenable number.

49400125 is a deficient number, since it is larger than the sum of its proper divisors (12251387).

49400125 is an equidigital number, since it uses as much as digits as its factorization.

49400125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395216 (or 395206 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 49400125 is about 7028.5222486665. The cubic root of 49400125 is about 366.9239126839.

The spelling of 49400125 in words is "forty-nine million, four hundred thousand, one hundred twenty-five".