61475507 has 4 divisors (see below), whose sum is σ = 64711080. Its totient is φ = 58239936.

The previous prime is 61475501. The next prime is 61475521. The reversal of 61475507 is 70557416.

61475507 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61475507 - 2⁶ = 61475443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61475501) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1617758 + ... + 1617795.

It is an arithmetic number, because the mean of its divisors is an integer number (16177770).

Almost surely, 2^61475507 is an apocalyptic number.

61475507 is a deficient number, since it is larger than the sum of its proper divisors (3235573).

61475507 is a wasteful number, since it uses less digits than its factorization.

61475507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3235572.

The product of its (nonzero) digits is 29400, while the sum is 35.

The square root of 61475507 is about 7840.6317985224. The cubic root of 61475507 is about 394.6699309629.

The spelling of 61475507 in words is "sixty-one million, four hundred seventy-five thousand, five hundred seven".