125502479 has 4 divisors (see below), whose sum is σ = 125535984. Its totient is φ = 125468976.

The previous prime is 125502473. The next prime is 125502493. The reversal of 125502479 is 974205521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 974205521 = 193 ⋅5047697.

It is a cyclic number.

It is not a de Polignac number, because 125502479 - 2¹² = 125498383 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 (125502473) 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, 10307 + ... + 18900.

It is an arithmetic number, because the mean of its divisors is an integer number (31383996).

Almost surely, 2^125502479 is an apocalyptic number.

125502479 is a deficient number, since it is larger than the sum of its proper divisors (33505).

125502479 is an equidigital number, since it uses as much as digits as its factorization.

125502479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33504.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 125502479 is about 11202.7888938425. The cubic root of 125502479 is about 500.6690762745.

The spelling of 125502479 in words is "one hundred twenty-five million, five hundred two thousand, four hundred seventy-nine".