2015562401 has 4 divisors (see below), whose sum is σ = 2035131072. Its totient is φ = 1995993732.

The previous prime is 2015562377. The next prime is 2015562431. The reversal of 2015562401 is 1042655102.

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 not a de Polignac number, because 2015562401 - 2³⁰ = 941820577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2015562431) 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, 9784181 + ... + 9784386.

It is an arithmetic number, because the mean of its divisors is an integer number (508782768).

Almost surely, 2^2015562401 is an apocalyptic number.

It is an amenable number.

2015562401 is a deficient number, since it is larger than the sum of its proper divisors (19568671).

2015562401 is a wasteful number, since it uses less digits than its factorization.

2015562401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19568670.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 2015562401 is about 44895.0153246438. The cubic root of 2015562401 is about 1263.1805097212.

The spelling of 2015562401 in words is "two billion, fifteen million, five hundred sixty-two thousand, four hundred one".