55969425 has 18 divisors (see below), whose sum is σ = 100247862. Its totient is φ = 29850240.

The previous prime is 55969409. The next prime is 55969439. The reversal of 55969425 is 52496955.

It is a happy number.

55969425 is a `hidden beast` number, since 559 + 6 + 94 + 2 + 5 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 9960336 + 46009089 = 3156^2 + 6783^2 .

It is not a de Polignac number, because 55969425 - 2⁴ = 55969409 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 124152 + ... + 124601.

Almost surely, 2^55969425 is an apocalyptic number.

It is an amenable number.

55969425 is a deficient number, since it is larger than the sum of its proper divisors (44278437).

55969425 is a wasteful number, since it uses less digits than its factorization.

55969425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248769 (or 248761 counting only the distinct ones).

The product of its digits is 486000, while the sum is 45.

The square root of 55969425 is about 7481.2716165101. The cubic root of 55969425 is about 382.5165954609.

The spelling of 55969425 in words is "fifty-five million, nine hundred sixty-nine thousand, four hundred twenty-five".