52989261 has 32 divisors (see below), whose sum is σ = 80532480. Its totient is φ = 30758400.

The previous prime is 52989253. The next prime is 52989281. The reversal of 52989261 is 16298925.

It is not a de Polignac number, because 52989261 - 2³ = 52989253 is a prime.

It is a super-2 number, since 2×52989261² = 5615723562652242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52989281) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49035 + ... + 50103.

It is an arithmetic number, because the mean of its divisors is an integer number (2516640).

Almost surely, 2^52989261 is an apocalyptic number.

It is an amenable number.

52989261 is a deficient number, since it is larger than the sum of its proper divisors (27543219).

52989261 is a wasteful number, since it uses less digits than its factorization.

52989261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1157.

The product of its digits is 77760, while the sum is 42.

The square root of 52989261 is about 7279.3722943671. The cubic root of 52989261 is about 375.6032034237.

The spelling of 52989261 in words is "fifty-two million, nine hundred eighty-nine thousand, two hundred sixty-one".