61851048 has 64 divisors (see below), whose sum is σ = 184412160. Its totient is φ = 16902336.

The previous prime is 61851037. The next prime is 61851067. The reversal of 61851048 is 84015816.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4140 + ... + 11867.

It is an arithmetic number, because the mean of its divisors is an integer number (2881440).

Almost surely, 2^61851048 is an apocalyptic number.

It is an amenable number.

61851048 is an abundant number, since it is smaller than the sum of its proper divisors (122561112).

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

61851048 is a wasteful number, since it uses less digits than its factorization.

61851048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16046 (or 16042 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 33.

The square root of 61851048 is about 7864.5437248451. The cubic root of 61851048 is about 395.4719520365.

The spelling of 61851048 in words is "sixty-one million, eight hundred fifty-one thousand, forty-eight".