138552625 has 16 divisors (see below), whose sum is σ = 174517200. Its totient is φ = 109814400.

The previous prime is 138552607. The next prime is 138552629. The reversal of 138552625 is 526255831.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 7884864 + 130667761 = 2808^2 + 11431^2 .

It is not a de Polignac number, because 138552625 - 2⁵ = 138552593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (138552629) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8541 + ... + 18709.

It is an arithmetic number, because the mean of its divisors is an integer number (10907325).

Almost surely, 2^138552625 is an apocalyptic number.

It is an amenable number.

138552625 is a deficient number, since it is larger than the sum of its proper divisors (35964575).

138552625 is a wasteful number, since it uses less digits than its factorization.

138552625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10293 (or 10283 counting only the distinct ones).

The product of its digits is 72000, while the sum is 37.

The square root of 138552625 is about 11770.8379056038. The cubic root of 138552625 is about 517.4538065452.

The spelling of 138552625 in words is "one hundred thirty-eight million, five hundred fifty-two thousand, six hundred twenty-five".