25153664142021 has 8 divisors (see below), whose sum is σ = 33835017253440. Its totient is φ = 16620710229312.

The previous prime is 25153664142011. The next prime is 25153664142023. The reversal of 25153664142021 is 12024146635152.

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

It is not a de Polignac number, because 25153664142021 - 2⁵ = 25153664141989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25153664142023) 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, 37099799281 + ... + 37099799958.

It is an arithmetic number, because the mean of its divisors is an integer number (4229377156680).

Almost surely, 2^{25153664142021} is an apocalyptic number.

It is an amenable number.

25153664142021 is a deficient number, since it is larger than the sum of its proper divisors (8681353111419).

25153664142021 is a wasteful number, since it uses less digits than its factorization.

25153664142021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74199599355.

The product of its (nonzero) digits is 345600, while the sum is 42.

The spelling of 25153664142021 in words is "twenty-five trillion, one hundred fifty-three billion, six hundred sixty-four million, one hundred forty-two thousand, twenty-one".