55240479 has 12 divisors (see below), whose sum is σ = 91190736. Its totient is φ = 31565952.

The previous prime is 55240477. The next prime is 55240483. The reversal of 55240479 is 97404255.

It is not a de Polignac number, because 55240479 - 2¹ = 55240477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55240477) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 438354 + ... + 438479.

It is an arithmetic number, because the mean of its divisors is an integer number (7599228).

Almost surely, 2^55240479 is an apocalyptic number.

55240479 is a deficient number, since it is larger than the sum of its proper divisors (35950257).

55240479 is a wasteful number, since it uses less digits than its factorization.

55240479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 876846 (or 876843 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 55240479 is about 7432.3938942981. The cubic root of 55240479 is about 380.8487009564.

The spelling of 55240479 in words is "fifty-five million, two hundred forty thousand, four hundred seventy-nine".