53491074 has 48 divisors (see below), whose sum is σ = 132092352. Its totient is φ = 14062464.

The previous prime is 53491073. The next prime is 53491117. The reversal of 53491074 is 47019435.

It is a super-2 number, since 2×53491074² = 5722589995346952, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53491073) 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, 170742 + ... + 171054.

It is an arithmetic number, because the mean of its divisors is an integer number (2751924).

Almost surely, 2^53491074 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53491074, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66046176).

53491074 is an abundant number, since it is smaller than the sum of its proper divisors (78601278).

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

53491074 is a wasteful number, since it uses less digits than its factorization.

53491074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651 (or 338 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 53491074 is about 7313.7592249130. The cubic root of 53491074 is about 376.7851454199.

The spelling of 53491074 in words is "fifty-three million, four hundred ninety-one thousand, seventy-four".