61052550431 has 2 divisors, whose sum is σ = 61052550432. Its totient is φ = 61052550430.

The previous prime is 61052550409. The next prime is 61052550437. The reversal of 61052550431 is 13405525016.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61052550431 - 2¹⁸ = 61052288287 is a prime.

It is a super-2 number, since 2×61052550431² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61052550437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30526275215 + 30526275216.

It is an arithmetic number, because the mean of its divisors is an integer number (30526275216).

Almost surely, 2^61052550431 is an apocalyptic number.

61052550431 is a deficient number, since it is larger than the sum of its proper divisors (1).

61052550431 is an equidigital number, since it uses as much as digits as its factorization.

61052550431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18000, while the sum is 32.

The spelling of 61052550431 in words is "sixty-one billion, fifty-two million, five hundred fifty thousand, four hundred thirty-one".