722325451 has 16 divisors (see below), whose sum is σ = 792140800. Its totient is φ = 656100000.

The previous prime is 722325431. The next prime is 722325473. The reversal of 722325451 is 154523227.

It is a 8-Lehmer number, since φ(722325451) divides (722325451-1)⁸.

It is a cyclic number.

It is not a de Polignac number, because 722325451 - 2¹⁹ = 721801163 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (722325431) 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, 58576 + ... + 69826.

It is an arithmetic number, because the mean of its divisors is an integer number (49508800).

Almost surely, 2^722325451 is an apocalyptic number.

722325451 is a deficient number, since it is larger than the sum of its proper divisors (69815349).

722325451 is a wasteful number, since it uses less digits than its factorization.

722325451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11410.

The product of its digits is 16800, while the sum is 31.

The square root of 722325451 is about 26876.1130188128. The cubic root of 722325451 is about 897.2448463211.

Adding to 722325451 its reverse (154523227), we get a palindrome (876848678).

The spelling of 722325451 in words is "seven hundred twenty-two million, three hundred twenty-five thousand, four hundred fifty-one".