125653537 has 8 divisors (see below), whose sum is σ = 126907496. Its totient is φ = 124405632.

The previous prime is 125653501. The next prime is 125653547. The reversal of 125653537 is 735356521.

It can be written as a sum of positive squares in 4 ways, for example, as 1308736 + 124344801 = 1144^2 + 11151^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 125653537 - 2¹¹ = 125651489 is a prime.

It is a super-2 number, since 2×125653537² = 31577622721220738, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 125653496 and 125653505.

It is not an unprimeable number, because it can be changed into a prime (125653547) 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, 47863 + ... + 50419.

It is an arithmetic number, because the mean of its divisors is an integer number (15863437).

Almost surely, 2^125653537 is an apocalyptic number.

It is an amenable number.

125653537 is a deficient number, since it is larger than the sum of its proper divisors (1253959).

125653537 is a wasteful number, since it uses less digits than its factorization.

125653537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3027.

The product of its digits is 94500, while the sum is 37.

The square root of 125653537 is about 11209.5288482612. The cubic root of 125653537 is about 500.8698684468.

The spelling of 125653537 in words is "one hundred twenty-five million, six hundred fifty-three thousand, five hundred thirty-seven".