15045252420 has 96 divisors (see below), whose sum is σ = 46472952960. Its totient is φ = 3606338560.

The previous prime is 15045252389. The next prime is 15045252427. The reversal of 15045252420 is 2425254051.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (15045252427) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69327 + ... + 186806.

It is an arithmetic number, because the mean of its divisors is an integer number (484093260).

Almost surely, 2^15045252420 is an apocalyptic number.

15045252420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15045252420 is an abundant number, since it is smaller than the sum of its proper divisors (31427700540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15045252420 is a wasteful number, since it uses less digits than its factorization.

15045252420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256245 (or 256243 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 30.

The spelling of 15045252420 in words is "fifteen billion, forty-five million, two hundred fifty-two thousand, four hundred twenty".