52207749 has 36 divisors (see below), whose sum is σ = 83655936. Its totient is φ = 31350000.

The previous prime is 52207733. The next prime is 52207781. The reversal of 52207749 is 94770225.

It is not a de Polignac number, because 52207749 - 2⁴ = 52207733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52207709) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 207874 + ... + 208124.

It is an arithmetic number, because the mean of its divisors is an integer number (2323776).

Almost surely, 2^52207749 is an apocalyptic number.

It is an amenable number.

52207749 is a deficient number, since it is larger than the sum of its proper divisors (31448187).

52207749 is a wasteful number, since it uses less digits than its factorization.

52207749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470 (or 456 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 52207749 is about 7225.4929935611. The cubic root of 52207749 is about 373.7475227928.

The spelling of 52207749 in words is "fifty-two million, two hundred seven thousand, seven hundred forty-nine".