53897562 has 40 divisors (see below), whose sum is σ = 122839200. Its totient is φ = 17658216.

The previous prime is 53897537. The next prime is 53897563. The reversal of 53897562 is 26579835.

It is a happy number.

53897562 is a `hidden beast` number, since 5 + 3 + 89 + 7 + 562 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53897563) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6739 + ... + 12377.

It is an arithmetic number, because the mean of its divisors is an integer number (3070980).

Almost surely, 2^53897562 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53897562, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61419600).

53897562 is an abundant number, since it is smaller than the sum of its proper divisors (68941638).

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

53897562 is a wasteful number, since it uses less digits than its factorization.

53897562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5712 (or 5703 counting only the distinct ones).

The product of its digits is 453600, while the sum is 45.

The square root of 53897562 is about 7341.4958966140. The cubic root of 53897562 is about 377.7371566537.

The spelling of 53897562 in words is "fifty-three million, eight hundred ninety-seven thousand, five hundred sixty-two".