55355425 has 12 divisors (see below), whose sum is σ = 70102656. Its totient is φ = 43341200.

The previous prime is 55355407. The next prime is 55355431. The reversal of 55355425 is 52455355.

It is not a de Polignac number, because 55355425 - 2⁷ = 55355297 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22381 + ... + 24730.

It is an arithmetic number, because the mean of its divisors is an integer number (5841888).

Almost surely, 2^55355425 is an apocalyptic number.

It is an amenable number.

55355425 is a deficient number, since it is larger than the sum of its proper divisors (14747231).

55355425 is a wasteful number, since it uses less digits than its factorization.

55355425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47168 (or 47163 counting only the distinct ones).

The product of its digits is 75000, while the sum is 34.

The square root of 55355425 is about 7440.1226468386. The cubic root of 55355425 is about 381.1126783057.

It can be divided in two parts, 5535 and 5425, that multiplied together give a triangular number (30027375 = T₇₇₄₉).

The spelling of 55355425 in words is "fifty-five million, three hundred fifty-five thousand, four hundred twenty-five".