616405502 has 4 divisors (see below), whose sum is σ = 924608256. Its totient is φ = 308202750.

The previous prime is 616405501. The next prime is 616405507. The reversal of 616405502 is 205504616.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616405501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 154101374 + ... + 154101377.

It is an arithmetic number, because the mean of its divisors is an integer number (231152064).

Almost surely, 2^616405502 is an apocalyptic number.

616405502 is a deficient number, since it is larger than the sum of its proper divisors (308202754).

616405502 is a wasteful number, since it uses less digits than its factorization.

616405502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308202753.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 616405502 is about 24827.5150186240. The cubic root of 616405502 is about 851.0508350593.

The spelling of 616405502 in words is "six hundred sixteen million, four hundred five thousand, five hundred two".