125356457501 has 24 divisors (see below), whose sum is σ = 139983104352. Its totient is φ = 112148704800.

The previous prime is 125356457467. The next prime is 125356457507. The reversal of 125356457501 is 105754653521.

It is not a de Polignac number, because 125356457501 - 2²⁶ = 125289348637 is a prime.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125356457507) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8837651 + ... + 8851823.

It is an arithmetic number, because the mean of its divisors is an integer number (5832629348).

Almost surely, 2^125356457501 is an apocalyptic number.

125356457501 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

125356457501 is a deficient number, since it is larger than the sum of its proper divisors (14626646851).

125356457501 is a wasteful number, since it uses less digits than its factorization.

125356457501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15353 (or 15342 counting only the distinct ones).

The product of its (nonzero) digits is 630000, while the sum is 44.

The spelling of 125356457501 in words is "one hundred twenty-five billion, three hundred fifty-six million, four hundred fifty-seven thousand, five hundred one".