52609491 has 24 divisors (see below), whose sum is σ = 83306496. Its totient is φ = 31728240.

The previous prime is 52609489. The next prime is 52609493. The reversal of 52609491 is 19490625.

52609491 is a `hidden beast` number, since 5 + 2 + 609 + 49 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (52609489) and next prime (52609493).

It is not a de Polignac number, because 52609491 - 2¹ = 52609489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52609493) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20886 + ... + 23268.

It is an arithmetic number, because the mean of its divisors is an integer number (3471104).

Almost surely, 2^52609491 is an apocalyptic number.

52609491 is a deficient number, since it is larger than the sum of its proper divisors (30697005).

52609491 is a wasteful number, since it uses less digits than its factorization.

52609491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2623 (or 2620 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 52609491 is about 7253.2400346328. The cubic root of 52609491 is about 374.7037446824.

The spelling of 52609491 in words is "fifty-two million, six hundred nine thousand, four hundred ninety-one".