42525513426401 has 4 divisors (see below), whose sum is σ = 44763698343600. Its totient is φ = 40287328509204.

The previous prime is 42525513426373. The next prime is 42525513426443. The reversal of 42525513426401 is 10462431552524.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42525513426401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42525513426701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1119092458571 + ... + 1119092458608.

It is an arithmetic number, because the mean of its divisors is an integer number (11190924585900).

Almost surely, 2^{42525513426401} is an apocalyptic number.

It is an amenable number.

42525513426401 is a deficient number, since it is larger than the sum of its proper divisors (2238184917199).

42525513426401 is a wasteful number, since it uses less digits than its factorization.

42525513426401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2238184917198.

The product of its (nonzero) digits is 1152000, while the sum is 44.

Adding to 42525513426401 its reverse (10462431552524), we get a palindrome (52987944978925).

The spelling of 42525513426401 in words is "forty-two trillion, five hundred twenty-five billion, five hundred thirteen million, four hundred twenty-six thousand, four hundred one".