620551002 has 16 divisors (see below), whose sum is σ = 1241349120. Its totient is φ = 206809152.

The previous prime is 620550979. The next prime is 620551003. The reversal of 620551002 is 200155026.

It is a self number, because there is not a number n which added to its sum of digits gives 620551002.

It is not an unprimeable number, because it can be changed into a prime (620551003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46183 + ... + 58085.

It is an arithmetic number, because the mean of its divisors is an integer number (77584320).

Almost surely, 2^620551002 is an apocalyptic number.

620551002 is an abundant number, since it is smaller than the sum of its proper divisors (620798118).

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

620551002 is a wasteful number, since it uses less digits than its factorization.

620551002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20597.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 620551002 is about 24910.8611252201. The cubic root of 620551002 is about 852.9544259280.

The spelling of 620551002 in words is "six hundred twenty million, five hundred fifty-one thousand, two".