61524879 has 8 divisors (see below), whose sum is σ = 88343472. Its totient is φ = 37861440.

The previous prime is 61524877. The next prime is 61524889. The reversal of 61524879 is 97842516.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61524879 - 2¹ = 61524877 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61524879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61524871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 788742 + ... + 788819.

It is an arithmetic number, because the mean of its divisors is an integer number (11042934).

Almost surely, 2^61524879 is an apocalyptic number.

61524879 is a deficient number, since it is larger than the sum of its proper divisors (26818593).

61524879 is a wasteful number, since it uses less digits than its factorization.

61524879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1577577.

The product of its digits is 120960, while the sum is 42.

The square root of 61524879 is about 7843.7796373942. The cubic root of 61524879 is about 394.7755580150.

The spelling of 61524879 in words is "sixty-one million, five hundred twenty-four thousand, eight hundred seventy-nine".