61481955 has 8 divisors (see below), whose sum is σ = 98371152. Its totient is φ = 32790368.

The previous prime is 61481941. The next prime is 61481971. The reversal of 61481955 is 55918416.

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

It is a cyclic number.

It is not a de Polignac number, because 61481955 - 2⁴ = 61481939 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2049384 + ... + 2049413.

It is an arithmetic number, because the mean of its divisors is an integer number (12296394).

Almost surely, 2^61481955 is an apocalyptic number.

61481955 is a deficient number, since it is larger than the sum of its proper divisors (36889197).

61481955 is a wasteful number, since it uses less digits than its factorization.

61481955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4098805.

The product of its digits is 43200, while the sum is 39.

The square root of 61481955 is about 7841.0429790940. The cubic root of 61481955 is about 394.6837291018.

The spelling of 61481955 in words is "sixty-one million, four hundred eighty-one thousand, nine hundred fifty-five".