55969953 has 16 divisors (see below), whose sum is σ = 84598080. Its totient is φ = 32629824.

The previous prime is 55969951. The next prime is 55969957. The reversal of 55969953 is 35996955.

It is not a de Polignac number, because 55969953 - 2¹ = 55969951 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 55969896 and 55969905.

It is not an unprimeable number, because it can be changed into a prime (55969951) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37026 + ... + 38507.

It is an arithmetic number, because the mean of its divisors is an integer number (5287380).

Almost surely, 2^55969953 is an apocalyptic number.

It is an amenable number.

55969953 is a deficient number, since it is larger than the sum of its proper divisors (28628127).

55969953 is a wasteful number, since it uses less digits than its factorization.

55969953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75568.

The product of its digits is 1640250, while the sum is 51.

The square root of 55969953 is about 7481.3069045455. The cubic root of 55969953 is about 382.5177983089.

The spelling of 55969953 in words is "fifty-five million, nine hundred sixty-nine thousand, nine hundred fifty-three".