245630461553 has 2 divisors, whose sum is σ = 245630461554. Its totient is φ = 245630461552.

The previous prime is 245630461537. The next prime is 245630461591. The reversal of 245630461553 is 355164036542.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 211957110544 + 33673351009 = 460388^2 + 183503^2 .

It is a cyclic number.

It is not a de Polignac number, because 245630461553 - 2⁴ = 245630461537 is a prime.

It is a super-2 number, since 2×245630461553² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (245630460553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122815230776 + 122815230777.

It is an arithmetic number, because the mean of its divisors is an integer number (122815230777).

Almost surely, 2^245630461553 is an apocalyptic number.

It is an amenable number.

245630461553 is a deficient number, since it is larger than the sum of its proper divisors (1).

245630461553 is an equidigital number, since it uses as much as digits as its factorization.

245630461553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296000, while the sum is 44.

The spelling of 245630461553 in words is "two hundred forty-five billion, six hundred thirty million, four hundred sixty-one thousand, five hundred fifty-three".