2515053421 has 2 divisors, whose sum is σ = 2515053422. Its totient is φ = 2515053420.

The previous prime is 2515053371. The next prime is 2515053461. The reversal of 2515053421 is 1243505152.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2056622500 + 458430921 = 45350^2 + 21411^2 .

It is a cyclic number.

It is not a de Polignac number, because 2515053421 - 2⁷ = 2515053293 is a prime.

It is a super-5 number, since 5×2515053421⁵ (a number of 48 digits) contains 55555 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2515053421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2515053461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1257526710 + 1257526711.

It is an arithmetic number, because the mean of its divisors is an integer number (1257526711).

Almost surely, 2^2515053421 is an apocalyptic number.

It is an amenable number.

2515053421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2515053421 is an equidigital number, since it uses as much as digits as its factorization.

2515053421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 2515053421 is about 50150.3082841970. The cubic root of 2515053421 is about 1359.9274436854.

Adding to 2515053421 its reverse (1243505152), we get a palindrome (3758558573).

The spelling of 2515053421 in words is "two billion, five hundred fifteen million, fifty-three thousand, four hundred twenty-one".