61512048 has 120 divisors (see below), whose sum is σ = 192414768. Its totient is φ = 18911232.

The previous prime is 61511993. The next prime is 61512067. The reversal of 61512048 is 84021516.

61512048 is a `hidden beast` number, since 615 + 1 + 2 + 0 + 48 = 666.

61512048 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49936 + ... + 51152.

Almost surely, 2^61512048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61512048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96207384).

61512048 is an abundant number, since it is smaller than the sum of its proper divisors (130902720).

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

61512048 is a wasteful number, since it uses less digits than its factorization.

61512048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1253 (or 1235 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 61512048 is about 7842.9616854859. The cubic root of 61512048 is about 394.7481126550.

The spelling of 61512048 in words is "sixty-one million, five hundred twelve thousand, forty-eight".