55023951 has 16 divisors (see below), whose sum is σ = 78845184. Its totient is φ = 34007424.

The previous prime is 55023949. The next prime is 55023953. The reversal of 55023951 is 15932055.

It is an interprime number because it is at equal distance from previous prime (55023949) and next prime (55023953).

It is not a de Polignac number, because 55023951 - 2¹ = 55023949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55023953) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4635 + ... + 11468.

It is an arithmetic number, because the mean of its divisors is an integer number (4927824).

Almost surely, 2^55023951 is an apocalyptic number.

55023951 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

55023951 is a deficient number, since it is larger than the sum of its proper divisors (23821233).

55023951 is a wasteful number, since it uses less digits than its factorization.

55023951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16190.

The product of its (nonzero) digits is 6750, while the sum is 30.

The square root of 55023951 is about 7417.8130874268. The cubic root of 55023951 is about 380.3504408010.

It can be divided in two parts, 5502 and 3951, that added together give a triangular number (9453 = T₁₃₇).

The spelling of 55023951 in words is "fifty-five million, twenty-three thousand, nine hundred fifty-one".