42021553015 has 32 divisors (see below), whose sum is σ = 57687537600. Its totient is φ = 29128273920.

The previous prime is 42021552997. The next prime is 42021553043. The reversal of 42021553015 is 51035512024.

42021553015 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42021553015 - 2⁷ = 42021552887 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21466 + ... + 290695.

It is an arithmetic number, because the mean of its divisors is an integer number (1802735550).

Almost surely, 2^42021553015 is an apocalyptic number.

42021553015 is a deficient number, since it is larger than the sum of its proper divisors (15665984585).

42021553015 is a wasteful number, since it uses less digits than its factorization.

42021553015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312307.

The product of its (nonzero) digits is 6000, while the sum is 28.

The spelling of 42021553015 in words is "forty-two billion, twenty-one million, five hundred fifty-three thousand, fifteen".