99962557 has 2 divisors, whose sum is σ = 99962558. Its totient is φ = 99962556.

The previous prime is 99962549. The next prime is 99962587. The reversal of 99962557 is 75526999.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71723961 + 28238596 = 8469^2 + 5314^2 .

It is an emirp because it is prime and its reverse (75526999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99962557 - 2³ = 99962549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99962537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49981278 + 49981279.

It is an arithmetic number, because the mean of its divisors is an integer number (49981279).

Almost surely, 2^99962557 is an apocalyptic number.

It is an amenable number.

99962557 is a deficient number, since it is larger than the sum of its proper divisors (1).

99962557 is an equidigital number, since it uses as much as digits as its factorization.

99962557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1530900, while the sum is 52.

The square root of 99962557 is about 9998.1276747199. The cubic root of 99962557 is about 464.1009444591.

The spelling of 99962557 in words is "ninety-nine million, nine hundred sixty-two thousand, five hundred fifty-seven".