651052451 has 16 divisors (see below), whose sum is σ = 800752320. Its totient is φ = 516602880.

The previous prime is 651052447. The next prime is 651052453. The reversal of 651052451 is 154250156.

It is a happy number.

651052451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 651052451 - 2² = 651052447 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (651052453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37586 + ... + 52103.

It is an arithmetic number, because the mean of its divisors is an integer number (50047020).

Almost surely, 2^651052451 is an apocalyptic number.

651052451 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

651052451 is a deficient number, since it is larger than the sum of its proper divisors (149699869).

651052451 is a wasteful number, since it uses less digits than its factorization.

651052451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89774.

The product of its (nonzero) digits is 6000, while the sum is 29.

The square root of 651052451 is about 25515.7294820274. The cubic root of 651052451 is about 866.7063784729.

The spelling of 651052451 in words is "six hundred fifty-one million, fifty-two thousand, four hundred fifty-one".