56461357501 has 2 divisors, whose sum is σ = 56461357502. Its totient is φ = 56461357500.

The previous prime is 56461357483. The next prime is 56461357523. The reversal of 56461357501 is 10575316465.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46401468100 + 10059889401 = 215410^2 + 100299^2 .

It is a cyclic number.

It is not a de Polignac number, because 56461357501 - 2⁷ = 56461357373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56461357531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28230678750 + 28230678751.

It is an arithmetic number, because the mean of its divisors is an integer number (28230678751).

Almost surely, 2^56461357501 is an apocalyptic number.

It is an amenable number.

56461357501 is a deficient number, since it is larger than the sum of its proper divisors (1).

56461357501 is an equidigital number, since it uses as much as digits as its factorization.

56461357501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 378000, while the sum is 43.

The spelling of 56461357501 in words is "fifty-six billion, four hundred sixty-one million, three hundred fifty-seven thousand, five hundred one".