61520058 has 24 divisors (see below), whose sum is σ = 137594496. Its totient is φ = 19845000.

The previous prime is 61520051. The next prime is 61520071. The reversal of 61520058 is 85002516.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (61520051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54568 + ... + 55683.

It is an arithmetic number, because the mean of its divisors is an integer number (5733104).

Almost surely, 2^61520058 is an apocalyptic number.

61520058 is an abundant number, since it is smaller than the sum of its proper divisors (76074438).

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

61520058 is a wasteful number, since it uses less digits than its factorization.

61520058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110290 (or 110287 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 61520058 is about 7843.4723177940. The cubic root of 61520058 is about 394.7652463996.

The spelling of 61520058 in words is "sixty-one million, five hundred twenty thousand, fifty-eight".