53756420 has 12 divisors (see below), whose sum is σ = 112888524. Its totient is φ = 21502560.

The previous prime is 53756399. The next prime is 53756441. The reversal of 53756420 is 2465735.

It is an interprime number because it is at equal distance from previous prime (53756399) and next prime (53756441).

It can be written as a sum of positive squares in 2 ways, for example, as 24423364 + 29333056 = 4942^2 + 5416^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1343891 + ... + 1343930.

It is an arithmetic number, because the mean of its divisors is an integer number (9407377).

Almost surely, 2^53756420 is an apocalyptic number.

It is an amenable number.

53756420 is an abundant number, since it is smaller than the sum of its proper divisors (59132104).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53756420 is a wasteful number, since it uses less digits than its factorization.

53756420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2687830 (or 2687828 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 32.

The square root of 53756420 is about 7331.8769766002. The cubic root of 53756420 is about 377.4071405883.

The spelling of 53756420 in words is "fifty-three million, seven hundred fifty-six thousand, four hundred twenty".