722051501 has 2 divisors, whose sum is σ = 722051502. Its totient is φ = 722051500.

The previous prime is 722051497. The next prime is 722051507. The reversal of 722051501 is 105150227.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 427414276 + 294637225 = 20674^2 + 17165^2 .

It is a cyclic number.

It is not a de Polignac number, because 722051501 - 2² = 722051497 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (722051507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361025750 + 361025751.

It is an arithmetic number, because the mean of its divisors is an integer number (361025751).

Almost surely, 2^722051501 is an apocalyptic number.

It is an amenable number.

722051501 is a deficient number, since it is larger than the sum of its proper divisors (1).

722051501 is an equidigital number, since it uses as much as digits as its factorization.

722051501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 700, while the sum is 23.

The square root of 722051501 is about 26871.0160023770. The cubic root of 722051501 is about 897.1314019330.

The spelling of 722051501 in words is "seven hundred twenty-two million, fifty-one thousand, five hundred one".