55535278 has 8 divisors (see below), whose sum is σ = 83463768. Its totient is φ = 27714024.

The previous prime is 55535257. The next prime is 55535303. The reversal of 55535278 is 87253555.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 55535278.

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, 25501 + ... + 27592.

It is an arithmetic number, because the mean of its divisors is an integer number (10432971).

Almost surely, 2^55535278 is an apocalyptic number.

55535278 is a deficient number, since it is larger than the sum of its proper divisors (27928490).

55535278 is a wasteful number, since it uses less digits than its factorization.

55535278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53618.

The product of its digits is 210000, while the sum is 40.

The square root of 55535278 is about 7452.1995410751. The cubic root of 55535278 is about 381.5249845218.

The spelling of 55535278 in words is "fifty-five million, five hundred thirty-five thousand, two hundred seventy-eight".