250403401 has 2 divisors, whose sum is σ = 250403402. Its totient is φ = 250403400.

The previous prime is 250403347. The next prime is 250403431. The reversal of 250403401 is 104304052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 213861376 + 36542025 = 14624^2 + 6045^2 .

It is a cyclic number.

It is not a de Polignac number, because 250403401 - 2¹³ = 250395209 is a prime.

It is not a weakly prime, because it can be changed into another prime (250403431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125201700 + 125201701.

It is an arithmetic number, because the mean of its divisors is an integer number (125201701).

Almost surely, 2^250403401 is an apocalyptic number.

It is an amenable number.

250403401 is a deficient number, since it is larger than the sum of its proper divisors (1).

250403401 is an equidigital number, since it uses as much as digits as its factorization.

250403401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 250403401 is about 15824.1398186442. The cubic root of 250403401 is about 630.2991784694.

Adding to 250403401 its reverse (104304052), we get a palindrome (354707453).

It can be divided in two parts, 25040 and 3401, that added together give a triangular number (28441 = T₂₃₈).

The spelling of 250403401 in words is "two hundred fifty million, four hundred three thousand, four hundred one".