61610052 has 36 divisors (see below), whose sum is σ = 167228880. Its totient is φ = 17602704.

The previous prime is 61610011. The next prime is 61610053. The reversal of 61610052 is 25001616.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (61610053) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51802 + ... + 52977.

Almost surely, 2^61610052 is an apocalyptic number.

It is an amenable number.

61610052 is an abundant number, since it is smaller than the sum of its proper divisors (105618828).

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

61610052 is a wasteful number, since it uses less digits than its factorization.

61610052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104800 (or 104791 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 61610052 is about 7849.2070937134. The cubic root of 61610052 is about 394.9576454079.

Adding to 61610052 its reverse (25001616), we get a palindrome (86611668).

The spelling of 61610052 in words is "sixty-one million, six hundred ten thousand, fifty-two".