403551061 has 2 divisors, whose sum is σ = 403551062. Its totient is φ = 403551060.

The previous prime is 403551053. The next prime is 403551079. The reversal of 403551061 is 160155304.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 315772900 + 87778161 = 17770^2 + 9369^2 .

It is a cyclic number.

It is not a de Polignac number, because 403551061 - 2³ = 403551053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (403551011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201775530 + 201775531.

It is an arithmetic number, because the mean of its divisors is an integer number (201775531).

Almost surely, 2^403551061 is an apocalyptic number.

It is an amenable number.

403551061 is a deficient number, since it is larger than the sum of its proper divisors (1).

403551061 is an equidigital number, since it uses as much as digits as its factorization.

403551061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 403551061 is about 20088.5803629823. The cubic root of 403551061 is about 738.9802492703.

The spelling of 403551061 in words is "four hundred three million, five hundred fifty-one thousand, sixty-one".