2521634416 has 40 divisors (see below), whose sum is σ = 5608058720. Its totient is φ = 1075970304.

The previous prime is 2521634413. The next prime is 2521634441. The reversal of 2521634416 is 6144361252.

It is a super-2 number, since 2×2521634416² = 12717280255911322112, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2521634413) 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, 23511 + ... + 74806.

It is an arithmetic number, because the mean of its divisors is an integer number (140201468).

Almost surely, 2^2521634416 is an apocalyptic number.

It is an amenable number.

2521634416 is an abundant number, since it is smaller than the sum of its proper divisors (3086424304).

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

2521634416 is a wasteful number, since it uses less digits than its factorization.

2521634416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98561 (or 98555 counting only the distinct ones).

The product of its digits is 34560, while the sum is 34.

The square root of 2521634416 is about 50215.8781263457. The cubic root of 2521634416 is about 1361.1125584729.

Adding to 2521634416 its reverse (6144361252), we get a palindrome (8665995668).

The spelling of 2521634416 in words is "two billion, five hundred twenty-one million, six hundred thirty-four thousand, four hundred sixteen".