2151415225501 has 4 divisors (see below), whose sum is σ = 2187879890400. Its totient is φ = 2114950560604.

The previous prime is 2151415225471. The next prime is 2151415225511. The reversal of 2151415225501 is 1055225141512.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2151415225501 - 2⁷ = 2151415225373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2151415225511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18232332361 + ... + 18232332478.

It is an arithmetic number, because the mean of its divisors is an integer number (546969972600).

Almost surely, 2^{2151415225501} is an apocalyptic number.

It is an amenable number.

2151415225501 is a deficient number, since it is larger than the sum of its proper divisors (36464664899).

2151415225501 is an equidigital number, since it uses as much as digits as its factorization.

2151415225501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36464664898.

The product of its (nonzero) digits is 20000, while the sum is 34.

The spelling of 2151415225501 in words is "two trillion, one hundred fifty-one billion, four hundred fifteen million, two hundred twenty-five thousand, five hundred one".