2500151440421 has 2 divisors, whose sum is σ = 2500151440422. Its totient is φ = 2500151440420.

The previous prime is 2500151440393. The next prime is 2500151440427. The reversal of 2500151440421 is 1240441510052.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1303284808225 + 1196866632196 = 1141615^2 + 1094014^2 .

It is a cyclic number.

It is not a de Polignac number, because 2500151440421 - 2¹⁸ = 2500151178277 is a prime.

It is a super-2 number, since 2×2500151440421² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2500151440427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1250075720210 + 1250075720211.

It is an arithmetic number, because the mean of its divisors is an integer number (1250075720211).

Almost surely, 2^{2500151440421} is an apocalyptic number.

It is an amenable number.

2500151440421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2500151440421 is an equidigital number, since it uses as much as digits as its factorization.

2500151440421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6400, while the sum is 29.

Adding to 2500151440421 its reverse (1240441510052), we get a palindrome (3740592950473).

The spelling of 2500151440421 in words is "two trillion, five hundred billion, one hundred fifty-one million, four hundred forty thousand, four hundred twenty-one".