53709972 has 24 divisors (see below), whose sum is σ = 129645600. Its totient is φ = 17285856.

The previous prime is 53709961. The next prime is 53710003. The reversal of 53709972 is 27990735.

It is a super-2 number, since 2×53709972² = 5769522184481568, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76822 + ... + 77517.

It is an arithmetic number, because the mean of its divisors is an integer number (5401900).

Almost surely, 2^53709972 is an apocalyptic number.

It is an amenable number.

53709972 is an abundant number, since it is smaller than the sum of its proper divisors (75935628).

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

53709972 is a wasteful number, since it uses less digits than its factorization.

53709972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154375 (or 154373 counting only the distinct ones).

The product of its (nonzero) digits is 119070, while the sum is 42.

The square root of 53709972 is about 7328.7087539348. The cubic root of 53709972 is about 377.2984102690.

The spelling of 53709972 in words is "fifty-three million, seven hundred nine thousand, nine hundred seventy-two".