53378885 has 24 divisors (see below), whose sum is σ = 78441120. Its totient is φ = 34673184.

The previous prime is 53378881. The next prime is 53378903. The reversal of 53378885 is 58887335.

It is not a de Polignac number, because 53378885 - 2² = 53378881 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53378881) 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, 1079 + ... + 10388.

It is an arithmetic number, because the mean of its divisors is an integer number (3268380).

Almost surely, 2^53378885 is an apocalyptic number.

It is an amenable number.

53378885 is a deficient number, since it is larger than the sum of its proper divisors (25062235).

53378885 is a wasteful number, since it uses less digits than its factorization.

53378885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11505 (or 11498 counting only the distinct ones).

The product of its digits is 806400, while the sum is 47.

The square root of 53378885 is about 7306.0854771895. The cubic root of 53378885 is about 376.5215454562.

The spelling of 53378885 in words is "fifty-three million, three hundred seventy-eight thousand, eight hundred eighty-five".