42501553501 has 16 divisors (see below), whose sum is σ = 46694688768. Its totient is φ = 38363770800.

The previous prime is 42501553463. The next prime is 42501553529. The reversal of 42501553501 is 10535510524.

It is a cyclic number.

It is not a de Polignac number, because 42501553501 - 2¹¹ = 42501551453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42501553541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1945300 + ... + 1967026.

It is an arithmetic number, because the mean of its divisors is an integer number (2918418048).

Almost surely, 2^42501553501 is an apocalyptic number.

It is an amenable number.

42501553501 is a deficient number, since it is larger than the sum of its proper divisors (4193135267).

42501553501 is a wasteful number, since it uses less digits than its factorization.

42501553501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22992.

The product of its (nonzero) digits is 15000, while the sum is 31.

The spelling of 42501553501 in words is "forty-two billion, five hundred one million, five hundred fifty-three thousand, five hundred one".