49400531 has 4 divisors (see below), whose sum is σ = 50605464. Its totient is φ = 48195600.

The previous prime is 49400497. The next prime is 49400563. The reversal of 49400531 is 13500494.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 49400531 - 2⁶ = 49400467 is a prime.

It is a super-2 number, since 2×49400531² = 4880824926163922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 49400531.

It is not an unprimeable number, because it can be changed into a prime (49400581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 602405 + ... + 602486.

It is an arithmetic number, because the mean of its divisors is an integer number (12651366).

Almost surely, 2^49400531 is an apocalyptic number.

49400531 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

49400531 is a deficient number, since it is larger than the sum of its proper divisors (1204933).

49400531 is a wasteful number, since it uses less digits than its factorization.

49400531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1204932.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 49400531 is about 7028.5511309231. The cubic root of 49400531 is about 366.9249178818.

The spelling of 49400531 in words is "forty-nine million, four hundred thousand, five hundred thirty-one".