55780994302 has 16 divisors (see below), whose sum is σ = 93220077312. Its totient is φ = 24815528920.

The previous prime is 55780994299. The next prime is 55780994341. The reversal of 55780994302 is 20349908755.

It is a super-2 number, since 2×55780994302² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55780994302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26972368 + ... + 26974435.

It is an arithmetic number, because the mean of its divisors is an integer number (5826254832).

Almost surely, 2^55780994302 is an apocalyptic number.

55780994302 is a deficient number, since it is larger than the sum of its proper divisors (37439083010).

55780994302 is a wasteful number, since it uses less digits than its factorization.

55780994302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53946863.

The product of its (nonzero) digits is 2721600, while the sum is 52.

The spelling of 55780994302 in words is "fifty-five billion, seven hundred eighty million, nine hundred ninety-four thousand, three hundred two".