55234690 has 16 divisors (see below), whose sum is σ = 113625792. Its totient is φ = 18937584.

The previous prime is 55234687. The next prime is 55234693. The reversal of 55234690 is 9643255.

It is an interprime number because it is at equal distance from previous prime (55234687) and next prime (55234693).

It is a super-2 number, since 2×55234690² = 6101741958792200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55234693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 394464 + ... + 394603.

It is an arithmetic number, because the mean of its divisors is an integer number (7101612).

Almost surely, 2^55234690 is an apocalyptic number.

55234690 is an abundant number, since it is smaller than the sum of its proper divisors (58391102).

55234690 is a wasteful number, since it uses less digits than its factorization.

55234690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789081.

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 55234690 is about 7432.0044402570. The cubic root of 55234690 is about 380.8353966417.

The spelling of 55234690 in words is "fifty-five million, two hundred thirty-four thousand, six hundred ninety".