20251245415 has 8 divisors (see below), whose sum is σ = 24894214128. Its totient is φ = 15805849920.

The previous prime is 20251245401. The next prime is 20251245467. The reversal of 20251245415 is 51454215202.

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

It is a de Polignac number, because none of the positive numbers 2^k-20251245415 is a prime.

It is a super-2 number, since 2×20251245415² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49393077 + ... + 49393486.

It is an arithmetic number, because the mean of its divisors is an integer number (3111776766).

Almost surely, 2^20251245415 is an apocalyptic number.

20251245415 is a deficient number, since it is larger than the sum of its proper divisors (4642968713).

20251245415 is an equidigital number, since it uses as much as digits as its factorization.

20251245415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98786609.

The product of its (nonzero) digits is 16000, while the sum is 31.

The spelling of 20251245415 in words is "twenty billion, two hundred fifty-one million, two hundred forty-five thousand, four hundred fifteen".