55261455 has 16 divisors (see below), whose sum is σ = 88871904. Its totient is φ = 29321600.

The previous prime is 55261447. The next prime is 55261463. The reversal of 55261455 is 55416255.

It is an interprime number because it is at equal distance from previous prime (55261447) and next prime (55261463).

It is not a de Polignac number, because 55261455 - 2³ = 55261447 is a prime.

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, 6396 + ... + 12305.

It is an arithmetic number, because the mean of its divisors is an integer number (5554494).

Almost surely, 2^55261455 is an apocalyptic number.

55261455 is a deficient number, since it is larger than the sum of its proper divisors (33610449).

55261455 is a wasteful number, since it uses less digits than its factorization.

55261455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18906.

The product of its digits is 30000, while the sum is 33.

The square root of 55261455 is about 7433.8048804095. The cubic root of 55261455 is about 380.8969003418.

It can be divided in two parts, 5526145 and 5, that added together give a triangular number (5526150 = T₃₃₂₄).

The spelling of 55261455 in words is "fifty-five million, two hundred sixty-one thousand, four hundred fifty-five".