53261715466 has 8 divisors (see below), whose sum is σ = 79893831780. Its totient is φ = 26630438208.

The previous prime is 53261715427. The next prime is 53261715469. The reversal of 53261715466 is 66451716235.

It can be written as a sum of positive squares in 2 ways, for example, as 51758525025 + 1503190441 = 227505^2 + 38771^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×53261715466² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53261715469) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14841 + ... + 326716.

Almost surely, 2^53261715466 is an apocalyptic number.

53261715466 is a deficient number, since it is larger than the sum of its proper divisors (26632116314).

53261715466 is a wasteful number, since it uses less digits than its factorization.

53261715466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419528.

The product of its digits is 907200, while the sum is 46.

The spelling of 53261715466 in words is "fifty-three billion, two hundred sixty-one million, seven hundred fifteen thousand, four hundred sixty-six".