621051202 has 4 divisors (see below), whose sum is σ = 931576806. Its totient is φ = 310525600.

The previous prime is 621051199. The next prime is 621051203. The reversal of 621051202 is 202150126.

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

It can be written as a sum of positive squares in only one way, i.e., 612117081 + 8934121 = 24741^2 + 2989^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 621051202.

It is not an unprimeable number, because it can be changed into a prime (621051203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155262799 + ... + 155262802.

Almost surely, 2^621051202 is an apocalyptic number.

621051202 is a deficient number, since it is larger than the sum of its proper divisors (310525604).

621051202 is a wasteful number, since it uses less digits than its factorization.

621051202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310525603.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 621051202 is about 24920.8989003206. The cubic root of 621051202 is about 853.1835412462.

The spelling of 621051202 in words is "six hundred twenty-one million, fifty-one thousand, two hundred two".