53477253 has 28 divisors (see below), whose sum is σ = 81035020. Its totient is φ = 35271936.

The previous prime is 53477239. The next prime is 53477261. The reversal of 53477253 is 35277435.

53477253 is a `hidden beast` number, since 534 + 7 + 72 + 53 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 27436644 + 26040609 = 5238^2 + 5103^2 .

It is not a de Polignac number, because 53477253 - 2¹⁰ = 53476229 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 (53477453) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 79125 + ... + 79797.

Almost surely, 2^53477253 is an apocalyptic number.

It is an amenable number.

53477253 is a deficient number, since it is larger than the sum of its proper divisors (27557767).

53477253 is an equidigital number, since it uses as much as digits as its factorization.

53477253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800 (or 785 counting only the distinct ones).

The product of its digits is 88200, while the sum is 36.

The square root of 53477253 is about 7312.8143009378. The cubic root of 53477253 is about 376.7526914316.

The spelling of 53477253 in words is "fifty-three million, four hundred seventy-seven thousand, two hundred fifty-three".