53031355 has 24 divisors (see below), whose sum is σ = 69727392. Its totient is φ = 38697984.

The previous prime is 53031287. The next prime is 53031403. The reversal of 53031355 is 55313035.

It is a happy number.

It is not a de Polignac number, because 53031355 - 2²¹ = 50934203 is a prime.

It is a super-2 number, since 2×53031355² = 5624649226272050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81642 + ... + 82288.

It is an arithmetic number, because the mean of its divisors is an integer number (2905308).

Almost surely, 2^53031355 is an apocalyptic number.

53031355 is a deficient number, since it is larger than the sum of its proper divisors (16696037).

53031355 is a wasteful number, since it uses less digits than its factorization.

53031355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775 (or 762 counting only the distinct ones).

The product of its (nonzero) digits is 3375, while the sum is 25.

The square root of 53031355 is about 7282.2630411157. The cubic root of 53031355 is about 375.7026352469.

The spelling of 53031355 in words is "fifty-three million, thirty-one thousand, three hundred fifty-five".