1577620053 has 6 divisors (see below), whose sum is σ = 2278784534. Its totient is φ = 1051746696.

The previous prime is 1577620019. The next prime is 1577620069. The reversal of 1577620053 is 3500267751.

It can be written as a sum of positive squares in only one way, i.e., 1448411364 + 129208689 = 38058^2 + 11367^2 .

It is not a de Polignac number, because 1577620053 - 2¹² = 1577615957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1577620013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 87645550 + ... + 87645567.

Almost surely, 2^1577620053 is an apocalyptic number.

It is an amenable number.

1577620053 is a deficient number, since it is larger than the sum of its proper divisors (701164481).

1577620053 is a wasteful number, since it uses less digits than its factorization.

1577620053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175291123 (or 175291120 counting only the distinct ones).

The product of its (nonzero) digits is 44100, while the sum is 36.

The square root of 1577620053 is about 39719.2655143571. The cubic root of 1577620053 is about 1164.1281898181.

The spelling of 1577620053 in words is "one billion, five hundred seventy-seven million, six hundred twenty thousand, fifty-three".