1525852961 has 2 divisors, whose sum is σ = 1525852962. Its totient is φ = 1525852960.

The previous prime is 1525852957. The next prime is 1525853047. The reversal of 1525852961 is 1692585251.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 779470561 + 746382400 = 27919^2 + 27320^2 .

It is a cyclic number.

It is not a de Polignac number, because 1525852961 - 2² = 1525852957 is a prime.

It is not a weakly prime, because it can be changed into another prime (1525852061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 762926480 + 762926481.

It is an arithmetic number, because the mean of its divisors is an integer number (762926481).

Almost surely, 2^1525852961 is an apocalyptic number.

It is an amenable number.

1525852961 is a deficient number, since it is larger than the sum of its proper divisors (1).

1525852961 is an equidigital number, since it uses as much as digits as its factorization.

1525852961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 216000, while the sum is 44.

The square root of 1525852961 is about 39062.1678993883. The cubic root of 1525852961 is about 1151.2533181473.

The spelling of 1525852961 in words is "one billion, five hundred twenty-five million, eight hundred fifty-two thousand, nine hundred sixty-one".