55242510 has 32 divisors (see below), whose sum is σ = 133559712. Its totient is φ = 14622720.

The previous prime is 55242497. The next prime is 55242521. The reversal of 55242510 is 1524255.

It is a happy number.

It is a super-2 number, since 2×55242510² = 6103469822200200, 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 15 ways as a sum of consecutive naturals, for example, 2611 + ... + 10830.

It is an arithmetic number, because the mean of its divisors is an integer number (4173741).

Almost surely, 2^55242510 is an apocalyptic number.

55242510 is an abundant number, since it is smaller than the sum of its proper divisors (78317202).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55242510 is a wasteful number, since it uses less digits than its factorization.

55242510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13588.

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 55242510 is about 7432.5305246598. The cubic root of 55242510 is about 380.8533683926.

Adding to 55242510 its reverse (1524255), we get a palindrome (56766765).

The spelling of 55242510 in words is "fifty-five million, two hundred forty-two thousand, five hundred ten".