542525250 has 96 divisors (see below), whose sum is σ = 1439058816. Its totient is φ = 136108800.

The previous prime is 542525239. The next prime is 542525261. The reversal of 542525250 is 52525245.

It is an interprime number because it is at equal distance from previous prime (542525239) and next prime (542525261).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 215499 + ... + 218001.

It is an arithmetic number, because the mean of its divisors is an integer number (14990196).

Almost surely, 2^542525250 is an apocalyptic number.

542525250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 542525250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (719529408).

542525250 is an abundant number, since it is smaller than the sum of its proper divisors (896533566).

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

542525250 is a wasteful number, since it uses less digits than its factorization.

542525250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2557 (or 2530 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 30.

The square root of 542525250 is about 23292.1714316205. The cubic root of 542525250 is about 815.5926786564.

The spelling of 542525250 in words is "five hundred forty-two million, five hundred twenty-five thousand, two hundred fifty".