55250415 has 72 divisors (see below), whose sum is σ = 107474640. Its totient is φ = 26231040.

The previous prime is 55250383. The next prime is 55250441. The reversal of 55250415 is 51405255.

It is not a de Polignac number, because 55250415 - 2⁵ = 55250383 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 397416 + ... + 397554.

Almost surely, 2^55250415 is an apocalyptic number.

55250415 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55250415 is a deficient number, since it is larger than the sum of its proper divisors (52224225).

55250415 is a wasteful number, since it uses less digits than its factorization.

55250415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245 (or 231 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 27.

The square root of 55250415 is about 7433.0622895278. The cubic root of 55250415 is about 380.8715337649.

It can be divided in two parts, 5 and 5250415, that added together give a triangular number (5250420 = T₃₂₄₀).

The spelling of 55250415 in words is "fifty-five million, two hundred fifty thousand, four hundred fifteen".