55425402 has 12 divisors (see below), whose sum is σ = 120088410. Its totient is φ = 18475128.

The previous prime is 55425401. The next prime is 55425407. The reversal of 55425402 is 20452455.

It can be written as a sum of positive squares in only one way, i.e., 53890281 + 1535121 = 7341^2 + 1239^2 .

It is not an unprimeable number, because it can be changed into a prime (55425401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1539577 + ... + 1539612.

Almost surely, 2^55425402 is an apocalyptic number.

55425402 is an abundant number, since it is smaller than the sum of its proper divisors (64663008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55425402 is a wasteful number, since it uses less digits than its factorization.

55425402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3079197 (or 3079194 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

The square root of 55425402 is about 7444.8238394202. The cubic root of 55425402 is about 381.2732039268.

Adding to 55425402 its reverse (20452455), we get a palindrome (75877857).

The spelling of 55425402 in words is "fifty-five million, four hundred twenty-five thousand, four hundred two".