125555913478 has 8 divisors (see below), whose sum is σ = 188345252520. Its totient is φ = 62774162640.

The previous prime is 125555913463. The next prime is 125555913493. The reversal of 125555913478 is 874319555521.

It is an interprime number because it is at equal distance from previous prime (125555913463) and next prime (125555913493).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1855503 + ... + 1921978.

It is an arithmetic number, because the mean of its divisors is an integer number (23543156565).

Almost surely, 2^125555913478 is an apocalyptic number.

125555913478 is a deficient number, since it is larger than the sum of its proper divisors (62789339042).

125555913478 is a wasteful number, since it uses less digits than its factorization.

125555913478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3794102.

The product of its digits is 7560000, while the sum is 55.

The spelling of 125555913478 in words is "one hundred twenty-five billion, five hundred fifty-five million, nine hundred thirteen thousand, four hundred seventy-eight".