400525007 has 2 divisors, whose sum is σ = 400525008. Its totient is φ = 400525006.

The previous prime is 400524989. The next prime is 400525039. The reversal of 400525007 is 700525004.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 400525007 - 2¹⁶ = 400459471 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400525057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200262503 + 200262504.

It is an arithmetic number, because the mean of its divisors is an integer number (200262504).

Almost surely, 2^400525007 is an apocalyptic number.

400525007 is a deficient number, since it is larger than the sum of its proper divisors (1).

400525007 is an equidigital number, since it uses as much as digits as its factorization.

400525007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1400, while the sum is 23.

The square root of 400525007 is about 20013.1208710686. The cubic root of 400525007 is about 737.1285158519.

The spelling of 400525007 in words is "four hundred million, five hundred twenty-five thousand, seven".