61057850 has 48 divisors (see below), whose sum is σ = 132842688. Its totient is φ = 20442240.

The previous prime is 61057823. The next prime is 61057853. The reversal of 61057850 is 5875016.

It is a super-2 number, since 2×61057850² = 7456122093245000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61057853) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13022 + ... + 17078.

It is an arithmetic number, because the mean of its divisors is an integer number (2767556).

Almost surely, 2^61057850 is an apocalyptic number.

61057850 is an abundant number, since it is smaller than the sum of its proper divisors (71784838).

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

61057850 is a wasteful number, since it uses less digits than its factorization.

61057850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4119 (or 4114 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 32.

The square root of 61057850 is about 7813.9522650193. The cubic root of 61057850 is about 393.7741196277.

The spelling of 61057850 in words is "sixty-one million, fifty-seven thousand, eight hundred fifty".