402551053 has 2 divisors, whose sum is σ = 402551054. Its totient is φ = 402551052.

The previous prime is 402551029. The next prime is 402551069. The reversal of 402551053 is 350155204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 370254564 + 32296489 = 19242^2 + 5683^2 .

It is a cyclic number.

It is not a de Polignac number, because 402551053 - 2⁵ = 402551021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402552053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201275526 + 201275527.

It is an arithmetic number, because the mean of its divisors is an integer number (201275527).

Almost surely, 2^402551053 is an apocalyptic number.

It is an amenable number.

402551053 is a deficient number, since it is larger than the sum of its proper divisors (1).

402551053 is an equidigital number, since it uses as much as digits as its factorization.

402551053 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 25.

The square root of 402551053 is about 20063.6749624788. The cubic root of 402551053 is about 738.3693415215.

The spelling of 402551053 in words is "four hundred two million, five hundred fifty-one thousand, fifty-three".