53551474448997 has 24 divisors (see below), whose sum is σ = 83070262048800. Its totient is φ = 30596851698336.

The previous prime is 53551474448987. The next prime is 53551474449023. The reversal of 53551474448997 is 79984447415535.

It is not a de Polignac number, because 53551474448997 - 2¹¹ = 53551474446949 is a prime.

It is a hoax number, since the sum of its digits (75) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53551474448987) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22623847 + ... + 24878532.

It is an arithmetic number, because the mean of its divisors is an integer number (3461260918700).

Almost surely, 2^{53551474448997} is an apocalyptic number.

It is an amenable number.

53551474448997 is a deficient number, since it is larger than the sum of its proper divisors (29518787599803).

53551474448997 is a wasteful number, since it uses less digits than its factorization.

53551474448997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47510065 (or 47510058 counting only the distinct ones).

The product of its digits is 3048192000, while the sum is 75.

The spelling of 53551474448997 in words is "fifty-three trillion, five hundred fifty-one billion, four hundred seventy-four million, four hundred forty-eight thousand, nine hundred ninety-seven".