53857337587 has 2 divisors, whose sum is σ = 53857337588. Its totient is φ = 53857337586.

The previous prime is 53857337561. The next prime is 53857337669. The reversal of 53857337587 is 78573375835.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53857337587 is a prime.

It is a super-2 number, since 2×53857337587² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (53857337087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26928668793 + 26928668794.

It is an arithmetic number, because the mean of its divisors is an integer number (26928668794).

Almost surely, 2^53857337587 is an apocalyptic number.

53857337587 is a deficient number, since it is larger than the sum of its proper divisors (1).

53857337587 is an equidigital number, since it uses as much as digits as its factorization.

53857337587 is an evil number, because the sum of its binary digits is even.

The product of its digits is 74088000, while the sum is 61.

The spelling of 53857337587 in words is "fifty-three billion, eight hundred fifty-seven million, three hundred thirty-seven thousand, five hundred eighty-seven".