814625650 has 12 divisors (see below), whose sum is σ = 1515203802. Its totient is φ = 325850240.

The previous prime is 814625641. The next prime is 814625663. The reversal of 814625650 is 56526418.

It can be written as a sum of positive squares in 3 ways, for example, as 682306641 + 132319009 = 26121^2 + 11503^2 .

It is a super-2 number, since 2×814625650² = 1327229899275845000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8146207 + ... + 8146306.

Almost surely, 2^814625650 is an apocalyptic number.

814625650 is a deficient number, since it is larger than the sum of its proper divisors (700578152).

814625650 is a wasteful number, since it uses less digits than its factorization.

814625650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16292525 (or 16292520 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 814625650 is about 28541.6476398963. The cubic root of 814625650 is about 933.9408254538.

The spelling of 814625650 in words is "eight hundred fourteen million, six hundred twenty-five thousand, six hundred fifty".