125520053 has 4 divisors (see below), whose sum is σ = 128439168. Its totient is φ = 122600940.

The previous prime is 125520049. The next prime is 125520067. The reversal of 125520053 is 350025521.

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: 350025521 = 7349 ⋅47629.

It is a cyclic number.

It is not a de Polignac number, because 125520053 - 2² = 125520049 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125520013) 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, 1459493 + ... + 1459578.

It is an arithmetic number, because the mean of its divisors is an integer number (32109792).

Almost surely, 2^125520053 is an apocalyptic number.

It is an amenable number.

125520053 is a deficient number, since it is larger than the sum of its proper divisors (2919115).

125520053 is an equidigital number, since it uses as much as digits as its factorization.

125520053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2919114.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 125520053 is about 11203.5732246458. The cubic root of 125520053 is about 500.6924445983.

Adding to 125520053 its reverse (350025521), we get a palindrome (475545574).

The spelling of 125520053 in words is "one hundred twenty-five million, five hundred twenty thousand, fifty-three".