53555597 has 4 divisors (see below), whose sum is σ = 54801120. Its totient is φ = 52310076.

The previous prime is 53555587. The next prime is 53555603. The reversal of 53555597 is 79555535.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 53555597 - 2⁴ = 53555581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53555527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 622697 + ... + 622782.

It is an arithmetic number, because the mean of its divisors is an integer number (13700280).

Almost surely, 2^53555597 is an apocalyptic number.

It is an amenable number.

53555597 is a deficient number, since it is larger than the sum of its proper divisors (1245523).

53555597 is a wasteful number, since it uses less digits than its factorization.

53555597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1245522.

The product of its digits is 590625, while the sum is 44.

The square root of 53555597 is about 7318.1689649802. The cubic root of 53555597 is about 376.9365821462.

The spelling of 53555597 in words is "fifty-three million, five hundred fifty-five thousand, five hundred ninety-seven".