69139952 has 40 divisors (see below), whose sum is σ = 162105696. Its totient is φ = 27887616.

The previous prime is 69139949. The next prime is 69139957. The reversal of 69139952 is 25993196.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69139957) 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, 16253 + ... + 20060.

Almost surely, 2^69139952 is an apocalyptic number.

It is an amenable number.

69139952 is an abundant number, since it is smaller than the sum of its proper divisors (92965744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

69139952 is a wasteful number, since it uses less digits than its factorization.

69139952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36345 (or 36339 counting only the distinct ones).

The product of its digits is 131220, while the sum is 44.

The square root of 69139952 is about 8315.0437160607. The cubic root of 69139952 is about 410.4337111814.

The spelling of 69139952 in words is "sixty-nine million, one hundred thirty-nine thousand, nine hundred fifty-two".