2015423601 has 16 divisors (see below), whose sum is σ = 2734790400. Its totient is φ = 1320029568.

The previous prime is 2015423573. The next prime is 2015423623. The reversal of 2015423601 is 1063245102.

It is not a de Polignac number, because 2015423601 - 2¹⁸ = 2015161457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2015423401) 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, 17880 + ... + 65958.

It is an arithmetic number, because the mean of its divisors is an integer number (170924400).

Almost surely, 2^2015423601 is an apocalyptic number.

It is an amenable number.

2015423601 is a deficient number, since it is larger than the sum of its proper divisors (719366799).

2015423601 is a wasteful number, since it uses less digits than its factorization.

2015423601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48328.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 2015423601 is about 44893.4694694006. The cubic root of 2015423601 is about 1263.1515131031.

Adding to 2015423601 its reverse (1063245102), we get a palindrome (3078668703).

The spelling of 2015423601 in words is "two billion, fifteen million, four hundred twenty-three thousand, six hundred one".