47155715 has 8 divisors (see below), whose sum is σ = 57384288. Its totient is φ = 37192960.

The previous prime is 47155709. The next prime is 47155721. The reversal of 47155715 is 51755174.

It is an interprime number because it is at equal distance from previous prime (47155709) and next prime (47155721).

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

It is not a de Polignac number, because 47155715 - 2⁶ = 47155651 is a prime.

It is a super-2 number, since 2×47155715² = 4447322914322450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66062 + ... + 66771.

It is an arithmetic number, because the mean of its divisors is an integer number (7173036).

Almost surely, 2^47155715 is an apocalyptic number.

47155715 is a deficient number, since it is larger than the sum of its proper divisors (10228573).

47155715 is a wasteful number, since it uses less digits than its factorization.

47155715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132909.

The product of its digits is 24500, while the sum is 35.

The square root of 47155715 is about 6867.0018931117. The cubic root of 47155715 is about 361.2807136157.

The spelling of 47155715 in words is "forty-seven million, one hundred fifty-five thousand, seven hundred fifteen".