1525012651 has 2 divisors, whose sum is σ = 1525012652. Its totient is φ = 1525012650.

The previous prime is 1525012613. The next prime is 1525012679. The reversal of 1525012651 is 1562105251.

It is an a-pointer prime, because the next prime (1525012679) can be obtained adding 1525012651 to its sum of digits (28).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1525012651 is a prime.

It is not a weakly prime, because it can be changed into another prime (1525012691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 762506325 + 762506326.

It is an arithmetic number, because the mean of its divisors is an integer number (762506326).

Almost surely, 2^1525012651 is an apocalyptic number.

1525012651 is a deficient number, since it is larger than the sum of its proper divisors (1).

1525012651 is an equidigital number, since it uses as much as digits as its factorization.

1525012651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3000, while the sum is 28.

The square root of 1525012651 is about 39051.4103586541. The cubic root of 1525012651 is about 1151.0419418780.

The spelling of 1525012651 in words is "one billion, five hundred twenty-five million, twelve thousand, six hundred fifty-one".