53025052557 has 4 divisors (see below), whose sum is σ = 70700070080. Its totient is φ = 35350035036.

The previous prime is 53025052543. The next prime is 53025052567. The reversal of 53025052557 is 75525052035.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 53025052557 - 2¹⁶ = 53024987021 is a prime.

It is a super-2 number, since 2×53025052557² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53025052567) 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, 8837508757 + ... + 8837508762.

It is an arithmetic number, because the mean of its divisors is an integer number (17675017520).

Almost surely, 2^53025052557 is an apocalyptic number.

It is an amenable number.

53025052557 is a deficient number, since it is larger than the sum of its proper divisors (17675017523).

53025052557 is a wasteful number, since it uses less digits than its factorization.

53025052557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17675017522.

The product of its (nonzero) digits is 262500, while the sum is 39.

The spelling of 53025052557 in words is "fifty-three billion, twenty-five million, fifty-two thousand, five hundred fifty-seven".