61573473053 has 2 divisors, whose sum is σ = 61573473054. Its totient is φ = 61573473052.

The previous prime is 61573473001. The next prime is 61573473131. The reversal of 61573473053 is 35037437516.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61572467044 + 1006009 = 248138^2 + 1003^2 .

It is a cyclic number.

It is not a de Polignac number, because 61573473053 - 2²⁸ = 61305037597 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61573472995 and 61573473013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61573473553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30786736526 + 30786736527.

It is an arithmetic number, because the mean of its divisors is an integer number (30786736527).

Almost surely, 2^61573473053 is an apocalyptic number.

It is an amenable number.

61573473053 is a deficient number, since it is larger than the sum of its proper divisors (1).

61573473053 is an equidigital number, since it uses as much as digits as its factorization.

61573473053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 793800, while the sum is 44.

The spelling of 61573473053 in words is "sixty-one billion, five hundred seventy-three million, four hundred seventy-three thousand, fifty-three".