2552992740 has 72 divisors (see below), whose sum is σ = 7871063928. Its totient is φ = 669634560.

The previous prime is 2552992721. The next prime is 2552992747. The reversal of 2552992740 is 472992552.

2552992740 is a `hidden beast` number, since 2 + 552 + 9 + 92 + 7 + 4 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 56791296 + 2496201444 = 7536^2 + 49962^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (2552992747) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 105277 + ... + 127236.

Almost surely, 2^2552992740 is an apocalyptic number.

2552992740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2552992740 is an abundant number, since it is smaller than the sum of its proper divisors (5318071188).

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

2552992740 is a wasteful number, since it uses less digits than its factorization.

2552992740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232589 (or 232584 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The square root of 2552992740 is about 50527.1485441243. The cubic root of 2552992740 is about 1366.7314661588.

The spelling of 2552992740 in words is "two billion, five hundred fifty-two million, nine hundred ninety-two thousand, seven hundred forty".