55964278 has 8 divisors (see below), whose sum is σ = 83979360. Its totient is φ = 27971160.

The previous prime is 55964261. The next prime is 55964309. The reversal of 55964278 is 87246955.

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

It is a super-2 number, since 2×55964278² = 6264000824122568, which contains 22 as substring.

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, 4563 + ... + 11521.

It is an arithmetic number, because the mean of its divisors is an integer number (10497420).

Almost surely, 2^55964278 is an apocalyptic number.

55964278 is a deficient number, since it is larger than the sum of its proper divisors (28015082).

55964278 is a wasteful number, since it uses less digits than its factorization.

55964278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10982.

The product of its digits is 604800, while the sum is 46.

The square root of 55964278 is about 7480.9276162786. The cubic root of 55964278 is about 382.5048695750.

The spelling of 55964278 in words is "fifty-five million, nine hundred sixty-four thousand, two hundred seventy-eight".