125514551 has 8 divisors (see below), whose sum is σ = 132596400. Its totient is φ = 118480320.

The previous prime is 125514541. The next prime is 125514559. The reversal of 125514551 is 155415521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 125514551 - 2²⁶ = 58405687 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 (125514559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6416 + ... + 17093.

It is an arithmetic number, because the mean of its divisors is an integer number (16574550).

Almost surely, 2^125514551 is an apocalyptic number.

125514551 is a deficient number, since it is larger than the sum of its proper divisors (7081849).

125514551 is a wasteful number, since it uses less digits than its factorization.

125514551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23809.

The product of its digits is 5000, while the sum is 29.

The square root of 125514551 is about 11203.3276752936. The cubic root of 125514551 is about 500.6851287683.

The spelling of 125514551 in words is "one hundred twenty-five million, five hundred fourteen thousand, five hundred fifty-one".