650090451 has 4 divisors (see below), whose sum is σ = 866787272. Its totient is φ = 433393632.

The previous prime is 650090431. The next prime is 650090461. The reversal of 650090451 is 154090056.

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

It is not a de Polignac number, because 650090451 - 2¹⁸ = 649828307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (650090401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108348406 + ... + 108348411.

It is an arithmetic number, because the mean of its divisors is an integer number (216696818).

Almost surely, 2^650090451 is an apocalyptic number.

650090451 is a deficient number, since it is larger than the sum of its proper divisors (216696821).

650090451 is a wasteful number, since it uses less digits than its factorization.

650090451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216696820.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 650090451 is about 25496.8713963106. The cubic root of 650090451 is about 866.2792840892.

The spelling of 650090451 in words is "six hundred fifty million, ninety thousand, four hundred fifty-one".