61610022 has 24 divisors (see below), whose sum is σ = 133644576. Its totient is φ = 20512656.

The previous prime is 61610011. The next prime is 61610053. The reversal of 61610022 is 22001616.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 61609977 and 61610004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20883 + ... + 23649.

It is an arithmetic number, because the mean of its divisors is an integer number (5568524).

Almost surely, 2^61610022 is an apocalyptic number.

61610022 is an abundant number, since it is smaller than the sum of its proper divisors (72034554).

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

61610022 is a wasteful number, since it uses less digits than its factorization.

61610022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4012 (or 4009 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 61610022 is about 7849.2051826921. The cubic root of 61610022 is about 394.9575813018.

Adding to 61610022 its reverse (22001616), we get a palindrome (83611638).

The spelling of 61610022 in words is "sixty-one million, six hundred ten thousand, twenty-two".