61575042 has 16 divisors (see below), whose sum is σ = 123227712. Its totient is φ = 20512080.

The previous prime is 61575023. The next prime is 61575053. The reversal of 61575042 is 24057516.

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, 14908 + ... + 18584.

It is an arithmetic number, because the mean of its divisors is an integer number (7701732).

Almost surely, 2^61575042 is an apocalyptic number.

61575042 is an abundant number, since it is smaller than the sum of its proper divisors (61652670).

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

61575042 is a wasteful number, since it uses less digits than its factorization.

61575042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6473.

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 61575042 is about 7846.9766152321. The cubic root of 61575042 is about 394.8828194842.

It can be divided in two parts, 615 and 75042, that added together give a palindrome (75657).

The spelling of 61575042 in words is "sixty-one million, five hundred seventy-five thousand, forty-two".