55960819 has 2 divisors, whose sum is σ = 55960820. Its totient is φ = 55960818.

The previous prime is 55960813. The next prime is 55960823. The reversal of 55960819 is 91806955.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55960819 - 2¹⁷ = 55829747 is a prime.

It is a super-2 number, since 2×55960819² = 6263226526301522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55960813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27980409 + 27980410.

It is an arithmetic number, because the mean of its divisors is an integer number (27980410).

Almost surely, 2^55960819 is an apocalyptic number.

55960819 is a deficient number, since it is larger than the sum of its proper divisors (1).

55960819 is an equidigital number, since it uses as much as digits as its factorization.

55960819 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 97200, while the sum is 43.

The square root of 55960819 is about 7480.6964247990. The cubic root of 55960819 is about 382.4969888837.

The spelling of 55960819 in words is "fifty-five million, nine hundred sixty thousand, eight hundred nineteen".