402725051 has 2 divisors, whose sum is σ = 402725052. Its totient is φ = 402725050.

The previous prime is 402725039. The next prime is 402725069. The reversal of 402725051 is 150527204.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-402725051 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 402725051.

It is not a weakly prime, because it can be changed into another prime (402725551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201362525 + 201362526.

It is an arithmetic number, because the mean of its divisors is an integer number (201362526).

Almost surely, 2^402725051 is an apocalyptic number.

402725051 is a deficient number, since it is larger than the sum of its proper divisors (1).

402725051 is an equidigital number, since it uses as much as digits as its factorization.

402725051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 402725051 is about 20068.0106388252. The cubic root of 402725051 is about 738.4757100443.

The spelling of 402725051 in words is "four hundred two million, seven hundred twenty-five thousand, fifty-one".