52491546 has 24 divisors (see below), whose sum is σ = 120422484. Its totient is φ = 16467840.

The previous prime is 52491541. The next prime is 52491559. The reversal of 52491546 is 64519425.

52491546 is a `hidden beast` number, since 5 + 24 + 91 + 546 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 52490025 + 1521 = 7245^2 + 39^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 52491546.

It is not an unprimeable number, because it can be changed into a prime (52491541) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85465 + ... + 86076.

Almost surely, 2^52491546 is an apocalyptic number.

52491546 is an abundant number, since it is smaller than the sum of its proper divisors (67930938).

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

52491546 is a wasteful number, since it uses less digits than its factorization.

52491546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171566 (or 171563 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 52491546 is about 7245.1049681837. The cubic root of 52491546 is about 374.4235195750.

The spelling of 52491546 in words is "fifty-two million, four hundred ninety-one thousand, five hundred forty-six".