61579051 has 4 divisors (see below), whose sum is σ = 63565504. Its totient is φ = 59592600.

The previous prime is 61579033. The next prime is 61579099. The reversal of 61579051 is 15097516.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61579051 - 2²¹ = 59481899 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61578998 and 61579016.

It is not an unprimeable number, because it can be changed into a prime (61579451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 993180 + ... + 993241.

It is an arithmetic number, because the mean of its divisors is an integer number (15891376).

Almost surely, 2^61579051 is an apocalyptic number.

61579051 is a deficient number, since it is larger than the sum of its proper divisors (1986453).

61579051 is a wasteful number, since it uses less digits than its factorization.

61579051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1986452.

The product of its (nonzero) digits is 9450, while the sum is 34.

The square root of 61579051 is about 7847.2320597775. The cubic root of 61579051 is about 394.8913892489.

The spelling of 61579051 in words is "sixty-one million, five hundred seventy-nine thousand, fifty-one".