61886955 has 24 divisors (see below), whose sum is σ = 107226288. Its totient is φ = 30466176.

The previous prime is 61886939. The next prime is 61886969. The reversal of 61886955 is 55968816.

It is not a de Polignac number, because 61886955 - 2⁴ = 61886939 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9672 + ... + 14741.

It is an arithmetic number, because the mean of its divisors is an integer number (4467762).

Almost surely, 2^61886955 is an apocalyptic number.

61886955 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

61886955 is a deficient number, since it is larger than the sum of its proper divisors (45339333).

61886955 is a wasteful number, since it uses less digits than its factorization.

61886955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24447 (or 24434 counting only the distinct ones).

The product of its digits is 518400, while the sum is 48.

The square root of 61886955 is about 7866.8262342574. The cubic root of 61886955 is about 395.5484663118.

The spelling of 61886955 in words is "sixty-one million, eight hundred eighty-six thousand, nine hundred fifty-five".