25421011357 has 16 divisors (see below), whose sum is σ = 29844944640. Its totient is φ = 21195451008.

The previous prime is 25421011331. The next prime is 25421011361. The reversal of 25421011357 is 75311012452.

It is a cyclic number.

It is not a de Polignac number, because 25421011357 - 2²³ = 25412622749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25421014357) 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, 1393944 + ... + 1412062.

It is an arithmetic number, because the mean of its divisors is an integer number (1865309040).

Almost surely, 2^25421011357 is an apocalyptic number.

It is an amenable number.

25421011357 is a deficient number, since it is larger than the sum of its proper divisors (4423933283).

25421011357 is a wasteful number, since it uses less digits than its factorization.

25421011357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23580.

The product of its (nonzero) digits is 8400, while the sum is 31.

The spelling of 25421011357 in words is "twenty-five billion, four hundred twenty-one million, eleven thousand, three hundred fifty-seven".