53257043457 has 8 divisors (see below), whose sum is σ = 78899323680. Its totient is φ = 35504695620.

The previous prime is 53257043381. The next prime is 53257043537. The reversal of 53257043457 is 75434075235.

53257043457 is a `hidden beast` number, since 5 + 32 + 570 + 4 + 3 + 45 + 7 = 666.

It is not a de Polignac number, because 53257043457 - 2¹² = 53257039361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53257041457) 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 7 ways as a sum of consecutive naturals, for example, 986241519 + ... + 986241572.

It is an arithmetic number, because the mean of its divisors is an integer number (9862415460).

Almost surely, 2^53257043457 is an apocalyptic number.

It is an amenable number.

53257043457 is a deficient number, since it is larger than the sum of its proper divisors (25642280223).

53257043457 is a wasteful number, since it uses less digits than its factorization.

53257043457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1972483100 (or 1972483094 counting only the distinct ones).

The product of its (nonzero) digits is 1764000, while the sum is 45.

The spelling of 53257043457 in words is "fifty-three billion, two hundred fifty-seven million, forty-three thousand, four hundred fifty-seven".