53113555 has 32 divisors (see below), whose sum is σ = 73363968. Its totient is φ = 36842080.

The previous prime is 53113547. The next prime is 53113591. The reversal of 53113555 is 55531135.

It is not a de Polignac number, because 53113555 - 2³ = 53113547 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 152892 + ... + 153238.

It is an arithmetic number, because the mean of its divisors is an integer number (2292624).

Almost surely, 2^53113555 is an apocalyptic number.

53113555 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

53113555 is a deficient number, since it is larger than the sum of its proper divisors (20250413).

53113555 is a wasteful number, since it uses less digits than its factorization.

53113555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408 (or 386 counting only the distinct ones).

The product of its digits is 5625, while the sum is 28.

The square root of 53113555 is about 7287.9047057436. The cubic root of 53113555 is about 375.8966513718.

The spelling of 53113555 in words is "fifty-three million, one hundred thirteen thousand, five hundred fifty-five".