55452231 has 12 divisors (see below), whose sum is σ = 80547480. Its totient is φ = 36760560.

The previous prime is 55452223. The next prime is 55452239. The reversal of 55452231 is 13225455.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (55452223) and next prime (55452239).

It is not a de Polignac number, because 55452231 - 2³ = 55452223 is a prime.

It is a super-2 number, since 2×55452231² = 6149899845754722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55452195 and 55452204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55452239) 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, 15600 + ... + 18821.

It is an arithmetic number, because the mean of its divisors is an integer number (6712290).

Almost surely, 2^55452231 is an apocalyptic number.

55452231 is a deficient number, since it is larger than the sum of its proper divisors (25095249).

55452231 is a wasteful number, since it uses less digits than its factorization.

55452231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34606 (or 34603 counting only the distinct ones).

The product of its digits is 6000, while the sum is 27.

The square root of 55452231 is about 7446.6254773555. The cubic root of 55452231 is about 381.3347132009.

Adding to 55452231 its reverse (13225455), we get a palindrome (68677686).

It can be divided in two parts, 5545 and 2231, that added together give a 5-th power (7776 = 6⁵).

The spelling of 55452231 in words is "fifty-five million, four hundred fifty-two thousand, two hundred thirty-one".