125402053 has 4 divisors (see below), whose sum is σ = 143316640. Its totient is φ = 107487468.

The previous prime is 125402051. The next prime is 125402077. The reversal of 125402053 is 350204521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 350204521 = 4649 ⋅75329.

It is a cyclic number.

It is not a de Polignac number, because 125402053 - 2¹ = 125402051 is a prime.

It is a super-2 number, since 2×125402053² = 31451349793229618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125402051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8957283 + ... + 8957296.

It is an arithmetic number, because the mean of its divisors is an integer number (35829160).

Almost surely, 2^125402053 is an apocalyptic number.

It is an amenable number.

125402053 is a deficient number, since it is larger than the sum of its proper divisors (17914587).

125402053 is an equidigital number, since it uses as much as digits as its factorization.

125402053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17914586.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 125402053 is about 11198.3058093624. The cubic root of 125402053 is about 500.5354969480.

Adding to 125402053 its reverse (350204521), we get a palindrome (475606574).

The spelling of 125402053 in words is "one hundred twenty-five million, four hundred two thousand, fifty-three".