61212504 has 64 divisors (see below), whose sum is σ = 162655200. Its totient is φ = 19160064.

The previous prime is 61212497. The next prime is 61212511. The reversal of 61212504 is 40521216.

It is an interprime number because it is at equal distance from previous prime (61212497) and next prime (61212511).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24564 + ... + 26940.

Almost surely, 2^61212504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61212504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81327600).

61212504 is an abundant number, since it is smaller than the sum of its proper divisors (101442696).

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

61212504 is a wasteful number, since it uses less digits than its factorization.

61212504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2452 (or 2448 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 61212504 is about 7823.8420229450. The cubic root of 61212504 is about 394.1063040393.

It can be divided in two parts, 61212 and 504, that added together give a palindrome (61716).

The spelling of 61212504 in words is "sixty-one million, two hundred twelve thousand, five hundred four".