2057611651 has 4 divisors (see below), whose sum is σ = 2059023400. Its totient is φ = 2056199904.

The previous prime is 2057611603. The next prime is 2057611681. The reversal of 2057611651 is 1561167502.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2057611651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2057611681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 703686 + ... + 706603.

It is an arithmetic number, because the mean of its divisors is an integer number (514755850).

Almost surely, 2^2057611651 is an apocalyptic number.

2057611651 is a deficient number, since it is larger than the sum of its proper divisors (1411749).

2057611651 is a wasteful number, since it uses less digits than its factorization.

2057611651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1411748.

The product of its (nonzero) digits is 12600, while the sum is 34.

The square root of 2057611651 is about 45360.9044332231. The cubic root of 2057611651 is about 1271.9044012232.

The spelling of 2057611651 in words is "two billion, fifty-seven million, six hundred eleven thousand, six hundred fifty-one".