2537215820 has 24 divisors (see below), whose sum is σ = 5347825728. Its totient is φ = 1011139200.

The previous prime is 2537215819. The next prime is 2537215843. The reversal of 2537215820 is 285127352.

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, 228641 + ... + 239480.

It is an arithmetic number, because the mean of its divisors is an integer number (222826072).

Almost surely, 2^2537215820 is an apocalyptic number.

2537215820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2537215820 is an abundant number, since it is smaller than the sum of its proper divisors (2810609908).

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

2537215820 is a wasteful number, since it uses less digits than its factorization.

2537215820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468401 (or 468399 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 2537215820 is about 50370.7833967271. The cubic root of 2537215820 is about 1363.9102825382.

The spelling of 2537215820 in words is "two billion, five hundred thirty-seven million, two hundred fifteen thousand, eight hundred twenty".