25423353555 has 8 divisors (see below), whose sum is σ = 40677365712. Its totient is φ = 13559121888.

The previous prime is 25423353547. The next prime is 25423353559. The reversal of 25423353555 is 55535332452.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25423353555 - 2³ = 25423353547 is a prime.

It is a super-2 number, since 2×25423353555² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25423353559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 847445104 + ... + 847445133.

It is an arithmetic number, because the mean of its divisors is an integer number (5084670714).

Almost surely, 2^25423353555 is an apocalyptic number.

25423353555 is a deficient number, since it is larger than the sum of its proper divisors (15254012157).

25423353555 is a wasteful number, since it uses less digits than its factorization.

25423353555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1694890245.

The product of its digits is 1350000, while the sum is 42.

The spelling of 25423353555 in words is "twenty-five billion, four hundred twenty-three million, three hundred fifty-three thousand, five hundred fifty-five".