51452615542 has 8 divisors (see below), whose sum is σ = 77180934456. Its totient is φ = 25725637392.

The previous prime is 51452615527. The next prime is 51452615593. The reversal of 51452615542 is 24551625415.

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

It is a super-2 number, since 2×51452615542² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51452615495 and 51452615504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233023 + ... + 396490.

It is an arithmetic number, because the mean of its divisors is an integer number (9647616807).

Almost surely, 2^51452615542 is an apocalyptic number.

51452615542 is a deficient number, since it is larger than the sum of its proper divisors (25728318914).

51452615542 is a wasteful number, since it uses less digits than its factorization.

51452615542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670382.

The product of its digits is 240000, while the sum is 40.

The spelling of 51452615542 in words is "fifty-one billion, four hundred fifty-two million, six hundred fifteen thousand, five hundred forty-two".