45400503 has 4 divisors (see below), whose sum is σ = 60534008. Its totient is φ = 30267000.

The previous prime is 45400501. The next prime is 45400507. The reversal of 45400503 is 30500454.

It is a happy number.

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

It is not a de Polignac number, because 45400503 - 2¹ = 45400501 is a prime.

It is a super-2 number, since 2×45400503² = 4122411345306018, 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 45400503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45400501) 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, 7566748 + ... + 7566753.

It is an arithmetic number, because the mean of its divisors is an integer number (15133502).

Almost surely, 2^45400503 is an apocalyptic number.

45400503 is a deficient number, since it is larger than the sum of its proper divisors (15133505).

45400503 is a wasteful number, since it uses less digits than its factorization.

45400503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15133504.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 45400503 is about 6737.9895369465. The cubic root of 45400503 is about 356.7414349128.

Adding to 45400503 its reverse (30500454), we get a palindrome (75900957).

The spelling of 45400503 in words is "forty-five million, four hundred thousand, five hundred three".