15535042375 has 16 divisors (see below), whose sum is σ = 20230681536. Its totient is φ = 11887682400.

The previous prime is 15535042361. The next prime is 15535042417. The reversal of 15535042375 is 57324053551.

It is a happy number.

It is not a de Polignac number, because 15535042375 - 2⁵ = 15535042343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2698872 + ... + 2704621.

It is an arithmetic number, because the mean of its divisors is an integer number (1264417596).

Almost surely, 2^15535042375 is an apocalyptic number.

15535042375 is a deficient number, since it is larger than the sum of its proper divisors (4695639161).

15535042375 is an equidigital number, since it uses as much as digits as its factorization.

15535042375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5403531 (or 5403521 counting only the distinct ones).

The product of its (nonzero) digits is 315000, while the sum is 40.

The spelling of 15535042375 in words is "fifteen billion, five hundred thirty-five million, forty-two thousand, three hundred seventy-five".