61630524 has 96 divisors (see below), whose sum is σ = 170903040. Its totient is φ = 19160064.

The previous prime is 61630519. The next prime is 61630577. The reversal of 61630524 is 42503616.

61630524 is a `hidden beast` number, since 6 + 1 + 630 + 5 + 24 = 666.

61630524 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 106524 + ... + 107100.

It is an arithmetic number, because the mean of its divisors is an integer number (1780240).

Almost surely, 2^61630524 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 61630524, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85451520).

61630524 is an abundant number, since it is smaller than the sum of its proper divisors (109272516).

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

61630524 is a wasteful number, since it uses less digits than its factorization.

61630524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656 (or 648 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 61630524 is about 7850.5110661663. The cubic root of 61630524 is about 395.0013865251.

The spelling of 61630524 in words is "sixty-one million, six hundred thirty thousand, five hundred twenty-four".