52780253057 has 16 divisors (see below), whose sum is σ = 61413889920. Its totient is φ = 44424281088.

The previous prime is 52780253047. The next prime is 52780253059. The reversal of 52780253057 is 75035208725.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52780253057 is a prime.

It is a super-2 number, since 2×52780253057² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52780252999 and 52780253017.

It is not an unprimeable number, because it can be changed into a prime (52780253059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28832 + ... + 326177.

It is an arithmetic number, because the mean of its divisors is an integer number (3838368120).

Almost surely, 2^52780253057 is an apocalyptic number.

It is an amenable number.

52780253057 is a deficient number, since it is larger than the sum of its proper divisors (8633636863).

52780253057 is a wasteful number, since it uses less digits than its factorization.

52780253057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355400.

The product of its (nonzero) digits is 588000, while the sum is 44.

The spelling of 52780253057 in words is "fifty-two billion, seven hundred eighty million, two hundred fifty-three thousand, fifty-seven".