53387185551 has 12 divisors (see below), whose sum is σ = 82804614552. Its totient is φ = 30506963088.

The previous prime is 53387185541. The next prime is 53387185573. The reversal of 53387185551 is 15558178335.

It is not a de Polignac number, because 53387185551 - 2⁶ = 53387185487 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53387185494 and 53387185503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53387185541) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 181588920 + ... + 181589213.

It is an arithmetic number, because the mean of its divisors is an integer number (6900384546).

Almost surely, 2^53387185551 is an apocalyptic number.

53387185551 is a deficient number, since it is larger than the sum of its proper divisors (29417429001).

53387185551 is a wasteful number, since it uses less digits than its factorization.

53387185551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363178150 (or 363178143 counting only the distinct ones).

The product of its digits is 2520000, while the sum is 51.

The spelling of 53387185551 in words is "fifty-three billion, three hundred eighty-seven million, one hundred eighty-five thousand, five hundred fifty-one".