125697467554 has 4 divisors (see below), whose sum is σ = 188546201334. Its totient is φ = 62848733776.

The previous prime is 125697467551. The next prime is 125697467563. The reversal of 125697467554 is 455764796521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 120843140625 + 4854326929 = 347625^2 + 69673^2 .

It is a junction number, because it is equal to n+sod(n) for n = 125697467492 and 125697467501.

It is not an unprimeable number, because it can be changed into a prime (125697467551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31424366887 + ... + 31424366890.

Almost surely, 2^125697467554 is an apocalyptic number.

125697467554 is a deficient number, since it is larger than the sum of its proper divisors (62848733780).

125697467554 is an equidigital number, since it uses as much as digits as its factorization.

125697467554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62848733779.

The product of its digits is 63504000, while the sum is 61.

The spelling of 125697467554 in words is "one hundred twenty-five billion, six hundred ninety-seven million, four hundred sixty-seven thousand, five hundred fifty-four".