45215125 has 16 divisors (see below), whose sum is σ = 58885632. Its totient is φ = 34597200.

The previous prime is 45215119. The next prime is 45215161. The reversal of 45215125 is 52151254.

It is not a de Polignac number, because 45215125 - 2⁹ = 45214613 is a prime.

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 45215125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4989 + ... + 10738.

It is an arithmetic number, because the mean of its divisors is an integer number (3680352).

Almost surely, 2^45215125 is an apocalyptic number.

It is an amenable number.

45215125 is a deficient number, since it is larger than the sum of its proper divisors (13670507).

45215125 is a wasteful number, since it uses less digits than its factorization.

45215125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15765 (or 15755 counting only the distinct ones).

The product of its digits is 2000, while the sum is 25.

The square root of 45215125 is about 6724.2192855379. The cubic root of 45215125 is about 356.2552271727.

Adding to 45215125 its reverse (52151254), we get a palindrome (97366379).

The spelling of 45215125 in words is "forty-five million, two hundred fifteen thousand, one hundred twenty-five".