616420524 has 12 divisors (see below), whose sum is σ = 1438314584. Its totient is φ = 205473504.

The previous prime is 616420513. The next prime is 616420573. The reversal of 616420524 is 425024616.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 616420491 and 616420500.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25684177 + ... + 25684200.

Almost surely, 2^616420524 is an apocalyptic number.

It is an amenable number.

616420524 is an abundant number, since it is smaller than the sum of its proper divisors (821894060).

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

616420524 is a wasteful number, since it uses less digits than its factorization.

616420524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51368384 (or 51368382 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 616420524 is about 24827.8175440372. The cubic root of 616420524 is about 851.0577484639.

The spelling of 616420524 in words is "six hundred sixteen million, four hundred twenty thousand, five hundred twenty-four".