2315511604 has 24 divisors (see below), whose sum is σ = 4634296128. Its totient is φ = 991660800.

The previous prime is 2315511593. The next prime is 2315511607. The reversal of 2315511604 is 4061155132.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2315511607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12132 + ... + 69124.

It is an arithmetic number, because the mean of its divisors is an integer number (193095672).

Almost surely, 2^2315511604 is an apocalyptic number.

It is an amenable number.

2315511604 is an abundant number, since it is smaller than the sum of its proper divisors (2318784524).

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

2315511604 is a wasteful number, since it uses less digits than its factorization.

2315511604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58455 (or 58453 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 2315511604 is about 48119.7631332491. The cubic root of 2315511604 is about 1322.9669267242.

Adding to 2315511604 its reverse (4061155132), we get a palindrome (6376666736).

The spelling of 2315511604 in words is "two billion, three hundred fifteen million, five hundred eleven thousand, six hundred four".