125778850 has 12 divisors (see below), whose sum is σ = 233948754. Its totient is φ = 50311520.

The previous prime is 125778817. The next prime is 125778859. The reversal of 125778850 is 58877521.

It can be written as a sum of positive squares in 3 ways, for example, as 91450969 + 34327881 = 9563^2 + 5859^2 .

It is a junction number, because it is equal to n+sod(n) for n = 125778797 and 125778806.

It is not an unprimeable number, because it can be changed into a prime (125778859) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1257739 + ... + 1257838.

Almost surely, 2^125778850 is an apocalyptic number.

125778850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125778850 is a deficient number, since it is larger than the sum of its proper divisors (108169904).

125778850 is a wasteful number, since it uses less digits than its factorization.

125778850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2515589 (or 2515584 counting only the distinct ones).

The product of its (nonzero) digits is 156800, while the sum is 43.

The square root of 125778850 is about 11215.1170301518. The cubic root of 125778850 is about 501.0363172757.

The spelling of 125778850 in words is "one hundred twenty-five million, seven hundred seventy-eight thousand, eight hundred fifty".