53540264987 has 16 divisors (see below), whose sum is σ = 59523351552. Its totient is φ = 47743569120.

The previous prime is 53540264971. The next prime is 53540265029. The reversal of 53540264987 is 78946204535.

It is a cyclic number.

It is not a de Polignac number, because 53540264987 - 2⁴ = 53540264971 is a prime.

It is a super-2 number, since 2×53540264987² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53540264917) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3517808 + ... + 3532994.

It is an arithmetic number, because the mean of its divisors is an integer number (3720209472).

Almost surely, 2^53540264987 is an apocalyptic number.

53540264987 is a deficient number, since it is larger than the sum of its proper divisors (5983086565).

53540264987 is a wasteful number, since it uses less digits than its factorization.

53540264987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21298.

The product of its (nonzero) digits is 7257600, while the sum is 53.

The spelling of 53540264987 in words is "fifty-three billion, five hundred forty million, two hundred sixty-four thousand, nine hundred eighty-seven".