20125601171254 has 4 divisors (see below), whose sum is σ = 30188401756884. Its totient is φ = 10062800585626.

The previous prime is 20125601171237. The next prime is 20125601171303. The reversal of 20125601171254 is 45217110652102.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5031400292812 + ... + 5031400292815.

It is an arithmetic number, because the mean of its divisors is an integer number (7547100439221).

Almost surely, 2^{20125601171254} is an apocalyptic number.

20125601171254 is a deficient number, since it is larger than the sum of its proper divisors (10062800585630).

20125601171254 is a wasteful number, since it uses less digits than its factorization.

20125601171254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10062800585629.

The product of its (nonzero) digits is 33600, while the sum is 37.

The spelling of 20125601171254 in words is "twenty trillion, one hundred twenty-five billion, six hundred one million, one hundred seventy-one thousand, two hundred fifty-four".