2552306691 has 16 divisors (see below), whose sum is σ = 3731690880. Its totient is φ = 1538833920.

The previous prime is 2552306671. The next prime is 2552306693. The reversal of 2552306691 is 1966032552.

It is not a de Polignac number, because 2552306691 - 2⁷ = 2552306563 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2552306693) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 194001 + ... + 206738.

It is an arithmetic number, because the mean of its divisors is an integer number (233230680).

Almost surely, 2^2552306691 is an apocalyptic number.

2552306691 is a deficient number, since it is larger than the sum of its proper divisors (1179384189).

2552306691 is a wasteful number, since it uses less digits than its factorization.

2552306691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400946.

The product of its (nonzero) digits is 97200, while the sum is 39.

The square root of 2552306691 is about 50520.3591733075. The cubic root of 2552306691 is about 1366.6090309292.

The spelling of 2552306691 in words is "two billion, five hundred fifty-two million, three hundred six thousand, six hundred ninety-one".