55524651961 has 2 divisors, whose sum is σ = 55524651962. Its totient is φ = 55524651960.

The previous prime is 55524651937. The next prime is 55524652049. The reversal of 55524651961 is 16915642555.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55098642361 + 426009600 = 234731^2 + 20640^2 .

It is a cyclic number.

It is not a de Polignac number, because 55524651961 - 2¹⁵ = 55524619193 is a prime.

It is a super-2 number, since 2×55524651961² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55524651761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27762325980 + 27762325981.

It is an arithmetic number, because the mean of its divisors is an integer number (27762325981).

Almost surely, 2^55524651961 is an apocalyptic number.

It is an amenable number.

55524651961 is a deficient number, since it is larger than the sum of its proper divisors (1).

55524651961 is an equidigital number, since it uses as much as digits as its factorization.

55524651961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1620000, while the sum is 49.

The spelling of 55524651961 in words is "fifty-five billion, five hundred twenty-four million, six hundred fifty-one thousand, nine hundred sixty-one".