53257156771 has 8 divisors (see below), whose sum is σ = 65547269984. Its totient is φ = 42137530560.

The previous prime is 53257156721. The next prime is 53257156783. The reversal of 53257156771 is 17765175235.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53257156771 - 2³³ = 44667222179 is a prime.

It is a super-2 number, since 2×53257156771² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53257156721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 292621650 + ... + 292621831.

It is an arithmetic number, because the mean of its divisors is an integer number (8193408748).

Almost surely, 2^53257156771 is an apocalyptic number.

53257156771 is a deficient number, since it is larger than the sum of its proper divisors (12290113213).

53257156771 is a wasteful number, since it uses less digits than its factorization.

53257156771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585243501.

The product of its digits is 1543500, while the sum is 49.

The spelling of 53257156771 in words is "fifty-three billion, two hundred fifty-seven million, one hundred fifty-six thousand, seven hundred seventy-one".