38520755 has 32 divisors (see below), whose sum is σ = 58748928. Its totient is φ = 23587200.

The previous prime is 38520739. The next prime is 38520761. The reversal of 38520755 is 55702583.

It is not a de Polignac number, because 38520755 - 2⁴ = 38520739 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12740 + ... + 15470.

It is an arithmetic number, because the mean of its divisors is an integer number (1835904).

Almost surely, 2^38520755 is an apocalyptic number.

38520755 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

38520755 is a deficient number, since it is larger than the sum of its proper divisors (20228173).

38520755 is a wasteful number, since it uses less digits than its factorization.

38520755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2787.

The product of its (nonzero) digits is 42000, while the sum is 35.

The square root of 38520755 is about 6206.5090832126. The cubic root of 38520755 is about 337.7263374322.

The spelling of 38520755 in words is "thirty-eight million, five hundred twenty thousand, seven hundred fifty-five".