2521164140 has 24 divisors (see below), whose sum is σ = 5775758352. Its totient is φ = 916786880.

The previous prime is 2521164133. The next prime is 2521164157. The reversal of 2521164140 is 414611252.

2521164140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5729699 + ... + 5730138.

It is an arithmetic number, because the mean of its divisors is an integer number (240656598).

Almost surely, 2^2521164140 is an apocalyptic number.

2521164140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2521164140 is an abundant number, since it is smaller than the sum of its proper divisors (3254594212).

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

2521164140 is a wasteful number, since it uses less digits than its factorization.

2521164140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11459857 (or 11459855 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 2521164140 is about 50211.1953651773. The cubic root of 2521164140 is about 1361.0279389683.

Adding to 2521164140 its reverse (414611252), we get a palindrome (2935775392).

It can be divided in two parts, 2521 and 164140, that added together give a palindrome (166661).

The spelling of 2521164140 in words is "two billion, five hundred twenty-one million, one hundred sixty-four thousand, one hundred forty".