52149429 has 12 divisors (see below), whose sum is σ = 76388832. Its totient is φ = 34276200.

The previous prime is 52149407. The next prime is 52149443. The reversal of 52149429 is 92494125.

It is not a de Polignac number, because 52149429 - 2⁸ = 52149173 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 52149393 and 52149402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52149469) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40167 + ... + 41444.

It is an arithmetic number, because the mean of its divisors is an integer number (6365736).

Almost surely, 2^52149429 is an apocalyptic number.

It is an amenable number.

52149429 is a deficient number, since it is larger than the sum of its proper divisors (24239403).

52149429 is a wasteful number, since it uses less digits than its factorization.

52149429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81688 (or 81685 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 52149429 is about 7221.4561550978. The cubic root of 52149429 is about 373.6083028668.

The spelling of 52149429 in words is "fifty-two million, one hundred forty-nine thousand, four hundred twenty-nine".