610553623 has 4 divisors (see below), whose sum is σ = 646468560. Its totient is φ = 574638688.

The previous prime is 610553611. The next prime is 610553639. The reversal of 610553623 is 326355016.

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 610553623 - 2²⁹ = 73682711 is a prime.

It is a super-2 number, since 2×610553623² = 745551453116852258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (610553123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17957443 + ... + 17957476.

It is an arithmetic number, because the mean of its divisors is an integer number (161617140).

Almost surely, 2^610553623 is an apocalyptic number.

610553623 is a deficient number, since it is larger than the sum of its proper divisors (35914937).

610553623 is a wasteful number, since it uses less digits than its factorization.

610553623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35914936.

The product of its (nonzero) digits is 16200, while the sum is 31.

The square root of 610553623 is about 24709.3832986580. The cubic root of 610553623 is about 848.3491015279.

The spelling of 610553623 in words is "six hundred ten million, five hundred fifty-three thousand, six hundred twenty-three".