61415452 has 24 divisors (see below), whose sum is σ = 122998400. Its totient is φ = 26285040.

The previous prime is 61415447. The next prime is 61415461. The reversal of 61415452 is 25451416.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 61415452.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35299 + ... + 36997.

Almost surely, 2^61415452 is an apocalyptic number.

It is an amenable number.

61415452 is an abundant number, since it is smaller than the sum of its proper divisors (61582948).

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

61415452 is a wasteful number, since it uses less digits than its factorization.

61415452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3001 (or 2999 counting only the distinct ones).

The product of its digits is 4800, while the sum is 28.

The square root of 61415452 is about 7836.8011331155. The cubic root of 61415452 is about 394.5413723107.

Adding to 61415452 its reverse (25451416), we get a palindrome (86866868).

The spelling of 61415452 in words is "sixty-one million, four hundred fifteen thousand, four hundred fifty-two".