2921052557 has 4 divisors (see below), whose sum is σ = 3092879196. Its totient is φ = 2749225920.

The previous prime is 2921052551. The next prime is 2921052559. The reversal of 2921052557 is 7552501292.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1831326436 + 1089726121 = 42794^2 + 33011^2 .

It is a cyclic number.

It is not a de Polignac number, because 2921052557 - 2⁸ = 2921052301 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2921052557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2921052551) 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, 85913294 + ... + 85913327.

It is an arithmetic number, because the mean of its divisors is an integer number (773219799).

Almost surely, 2^2921052557 is an apocalyptic number.

It is an amenable number.

2921052557 is a deficient number, since it is larger than the sum of its proper divisors (171826639).

2921052557 is a wasteful number, since it uses less digits than its factorization.

2921052557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171826638.

The product of its (nonzero) digits is 63000, while the sum is 38.

The square root of 2921052557 is about 54046.7626875098. The cubic root of 2921052557 is about 1429.4856182129.

The spelling of 2921052557 in words is "two billion, nine hundred twenty-one million, fifty-two thousand, five hundred fifty-seven".