125403955 has 12 divisors (see below), whose sum is σ = 151949952. Its totient is φ = 99355680.

The previous prime is 125403931. The next prime is 125403979. The reversal of 125403955 is 559304521.

It is an interprime number because it is at equal distance from previous prime (125403931) and next prime (125403979).

It is not a de Polignac number, because 125403955 - 2¹⁷ = 125272883 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 125403955.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58350 + ... + 60460.

It is an arithmetic number, because the mean of its divisors is an integer number (12662496).

Almost surely, 2^125403955 is an apocalyptic number.

125403955 is a deficient number, since it is larger than the sum of its proper divisors (26545997).

125403955 is an equidigital number, since it uses as much as digits as its factorization.

125403955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2334 (or 2225 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 34.

The square root of 125403955 is about 11198.3907326008. The cubic root of 125403955 is about 500.5380275118.

The spelling of 125403955 in words is "one hundred twenty-five million, four hundred three thousand, nine hundred fifty-five".